• Pre and post development assessment
• Pollutant modelling
• Flow management
• Water quality compliance
• Rainwater harvesting
• Stormwater harvesting
• Water Balance
• Life cycle costing
• Product listing service (sponsored listing)

music version 4.1 Release Notes

As part of eWater's initiative to maintain the music software into the future and to continue to include improvements, both functionality and science based, we are releasing music v4.1.
This version includes a number of bug fixes, and enhancements, that will allow users and software IT staff to manage the software in current standard operating environments.

Improvements include:-

• Ability to run in UAC in MS Vista, Win 7 using temporary directory for temporary files - minimising the need to have the software run in administrator mode;
• Updated Win 7 HASP drivers;
• Enhancements to the licence management system;
• Fix to MRT file where a column heading was incorrectly labelled;
• Splash Screen improvement - default display screen shown when user not connected to internet; and
• Sponsored Product Listings. 

The sponsored product listings project was undertaken at the request of users and out of the need to continually improve the software and provide services to the music user community. It allows users to search a database of supplier products (mainly GPT's at this stage) and aid in choosing the most suitable product for their project.  Over time the number of listings will grow and  as a not-for-profit, eWater is using this paid for initiative to further develop, enhance and improve the software.

MUSIC v4 is available via www.ewater.com.au/music

What's New in this Version of MUSIC

MUSIC Version 4.0 includes a number of significant new features and enhancements, summarised below. Users are referred to the specified chapter below for further information:

Version 4.0.0

• The Bioretention Node has been completely re-written, offering more accurate modelling of flow as well as water quality treatment. The treatment algorithms in the bioretention filter media are based on the latest research from the Facility for Advancing Water Biofiltration (FAWB). The new node includes sophisticated predictions of water flow and treatment, taking into account factors such as evapotranspiration and its effect on soil moisture, as well as the design of the system (e.g. filter media type and composition, choice of vegetation, etc).
• A new Media Filtration Node has been written, which allows systems such as sand filters and granular filter media systems to be easily modelled. The treatment algorithms can be user-edited, to allow device-specific data to be entered.
• The Infiltration Node has been modified to allow infiltration through the sides of the system (in MUSIC v3 infiltration was only modelled through the base). This provides a much more realistic prediction of infiltration in the system.
• An improved Graphical User Interface has been implemented to allow improved visualisation of the various source and treatment node types and toolbar access to frequently used menu items.
• All graphing and statistics can now be undertaken at a user-specified timestep. For example, the model can be run at 6 minute timesteps, but then the daily results analysed or plotted.
• A new “Node Water Balance” feature tells the user exactly how much water flowed into and out of a node, through all its various outlet components (including exfiltration and evapotranspiration). It also tells the user how much stormwater was demanded, and the amount of that demand which was satisfied. This makes analysing the performance of stormwater harvesting strategies much easier than in previous versions of MUSIC.
• A new user-friendly graphical “CSTR assistant” helps the user to determine the appropriate number of CSTRS (continuously stirred tank reactors) which should be used to represent the system they’re modelling, based on the shape of the system.
• Stormwater reuse demand can now be turned off automatically whenever rainfall exceeds evapotranspiration and a user-specified reuse time series can be imported, making MUSIC much more flexible and powerful for analysing stormwater harvesting strategies.
• A user-specified storage-discharge relationship can now be applied to most treatment nodes to simulate alternative outlet configurations.
• The life cycle cost algorithms have been modified to allow maintenance in the last year, as well as to allow elevated maintenance costs over the first few years of a treatment device during the establishment phase of a sustem. A "notes" facility has also been incorporated to the life cycle cost specification window to allow the user to record assumptions made when developing the life cycle cost estimates for a particular treatment node.
• The required volume of a GPT unit (for life cycle cost estimation purposes) is now calculated automatically by MUSIC based on the volume of trapped pollutants.
• Default serial correlation coefficients are automatically assigned to source nodes based on the adopted model timestep. This provides for much more realistic generation of pollutants between subsequent model timesteps.
• A number of minor bug fixes.

17 August 2007 - MUSIC Patch 3.0.2

A patch has been developed to address a potential mass balance discrepancy when routing flows through small storages.

MUSIC undertakes flood routing computation with a fixed time step from a day to 6 minutes. In the storage routing computations involving small storages and rapidly varying flow hydrographs, the use of a fixed time step, even as small as 6 minutes, can sometimes result in computation scenarios where the detention storage would drain to its permanent pool level over a time period that is shorter than the computation time step. The algorithm reports a negative outflow for the next time step which the model resets to zero.

The imbalance in the mass calculation is corrected by a drawdown in the permanent pool and is often inconsequential in relatively large storages and small time steps. However this can be significant when dealing with small storages (eg. small rainwater tanks that overflow frequently). The modification to the algorithm now resets the storage level to the top of permanent pool level concurrent with resetting negative outflows to zero. The mass balance is preserved by carrying the residual to the next overflow event.

Download the executable file to your computer and double click the file. Run the program to update MUSIC Version 3.0.1 with the new patch. PLEASE NOTE: The patch must be applied to all copies of Version 3.0.1.



Minor Bug Fix 3.0.1

Corrects minor errors in the way the software displays some outputs - specifically the ?Flow-Based Sub-Sample Statistics? and ?Flow-Weighted Daily Mean Cumulative Frequency Pollutograph? components.

Version 2.1 is available for the purposes of re-producing old MUSIC files, where required. MUSIC v2.1 is no longer current, and contains out-dated default values and algorithms. For all current modelling requirements, please ensure that you are using MUSIC v.3.0.1

Training Discount with purchase of MUSIC

Register for MUSIC Training when you purchase the MUSIC licence and you will received a 20% discount* on a 3-day training workshop. Sign up for a training workshop via the following link - www.toolkit.net.au/training

* not available with any other discount offer

• A Lifecycle Costing Module, which allows the lifecycle costs of a treatment node, or an entire stormwater treatment train, to be analysed. The module?s features, and basis, are fully described in Chapter 7 and Appendix H.
• The MUSIC development team have reviewed recent calibration studies, to provide new default k and C* values for MUSIC?s Universal Stormwater Treatment Model. Users are referred to Appendix F for further information.
• New treatment nodes (Infiltration, Rainwater Tank) (Ch 2 & 3)
• Modifications to the bioretention node to allow user-specification of the height of the collection pipe (in order to simulate flow-losses below the perforated collection pipe, where appropriate or desired) (Ch 3)
• Increased precision on the specification of re-use demands
• New Imported Data Source Node which allows an observed time series (of flow and pollutants) to be imported, for simulating situations such as point-source, or for calibrating the model to observed data (Ch 2 & 3)
• Improved capability to export simulation results from nodes, allowing the user to specify the timestep at which the export is done (Ch 4)
• Revised calculation of meteorological statistics to include zero-rainfall timesteps.

Please note: An error exists in MUSIC Version 2 that affects MUSIC?s predictions of the performance of bioretention systems (often also called biofilters). A corrected version will be released by 18 February 2005. The error does NOT affect any other treatment measure, or any other aspect of the MUSIC software. For further information please see the Additional downloads below.

• Removes the "Administrator bug" that afflicted Version 2.0.0 - whereby users needed to be Windows administrators to successfully launch MUSIC.
• Fixes the "Dale Browne Negative Loads bug" that afflicted Version 2.0.0 - whereby MUSIC had the potential to generate negative concentrations for brief periods following extreme flood events.

• MUSIC's rainfall-runoff algorithm has been significantly enhanced. Firstly, there is now only one pervious store per source node, making calibration easier, and avoiding potential instabilities where two pervious stores were specified. Secondly, the rainfall-runoff algorithm now includes the option to 'lose' water from the pervious store to a deep-groundwater store, which is NOT returned to baseflow. This can be used to simulate any situation where infiltrated water does not return to baseflow within the catchment of interest. For example, this could be used in small catchments, or where a catchment's defined outlet is a pipe (Ch 2 & 3, Appendix I).
• There is now the provision to specify a 'warm-up period' for MUSIC's rainfall runoff model. When selected, this option will 'pre-run' the rainfall-runoff model for the first 12 months of the simulation period, in order to equilibrate the initial storage states (pervious area and groundwater) in the model. The warm-up option will only operate when the total period of simulation is greater than 12 months (Ch 2 & 3, Appendix I).
• Specification of statistical characteristics (dry weather concentration and storm event mean concentration) simplified (option to specify + or 1 Std. Dev from mean now removed) (Ch 2).
• Generic Treatment Node (GTN) graphical equation editor improved to allow equation coordinates to be entered directly (via right-clicking on the point of interest on the equation curve) ? this makes exact specification of values easier than by dragging (Ch 2).
• MUSIC prompts you to Save your file before running a simulation, to prevent losing the model setup as a result of an aborted simulation (Ch 2).
• MUSIC now saves files (.sqz) without simulation results by default (but keeping the attached meteorological template), saving disk space, and time in opening files. Users can still specify to save simulation results (.sqr) if required (Ch 2). This has largely removed the need to use the Export function to create a (.sqn) file with only the model setup (but no meteorological template attached).
• The MUSIC Toolbar has been simplified, with Source, Treatment and Other Nodes now included on their own drop-down menus from the main toolbar. This allows the MUSIC window to be reduced to a smaller size, without losing access to toolbar items (Ch 2).
• Specification of acceptable parameter ranges has been relaxed (to allow users to experiment with unusual scenarios, if desired), although MUSIC will still warn users of the potential risk of using these 'out of range' values.
• The import wizard for Bureau of Meteorology (BOM) climate files has been improved to include a graphical illustration of the data being imported, to allow the user to identify periods for which there are reliable data. A colour-coding is used to identify periods of missing or estimated data (Ch 2).
• The Statistics options for viewing simulation results have been extensively revised. MUSIC allows users to view the Mean Annual Load from a node, and view the % change in load through the node (primarily used for treatment nodes). The new "Treatment Train Effectiveness" option can be used to compare the load at a given node (e.g. receiving node), with the sum of all source nodes contributing to it. This removes the need to individually add up the values from all source nodes (required in MUSIC Version 1). All statistics results dialogue boxes can be copied, and then pasted into other applications, such as Microsoft Excel (Ch 4).
• Both Statistics and Cumulative Frequency Graphs now have the option to be created for a subset of flow conditions (Flow-based Subsample). For example, they can be calculated for only baseflows (by setting an upper flow threshold), or for only stormflows (by setting a lower flow threshold) (Ch 4).
• MUSIC v2 includes a "Generic Source Node", which allows users to specify their own rainfall-runoff and water-quality parameters. This might be used, for example, to specify roof area runoff. Any of the other source nodes (urban, agricultural, forested) could achieve the same result, but users reported their icons (which portrayed their default land use) as a potential for mis-communication (Ch 2).
• Specification of water re-use from treatment nodes with a permanent pool is now more flexible, allowing any combination of constant (uniform) and seasonal (scaled by PET) demand, to simulate, for example, a combination of use for toilet-flushing, and garden watering. MUSIC also now allows an annual pattern to be specified by the user, using an adjustable "bar-chart" of monthly demand (Ch 3).

• "Running Models" status bar modified to address occasional incompatibility with Windows XP.
• Mis-alignment of column headings in Statistics display fixed.
• Instability in calculation of concentrations during timesteps of 'near-zero' flow in some treatment measures rectified.
• Occasional instances of MUSIC incorrectly stating "This does not appear to be a valid catchment file" fixed.
• Persistence of MUSIC temp files after file closure fixed.
• Peculiarities (under certain circumstances) of Generic Treatment Node graphical editor rectified.

music development began with the CRC for Catchment Hydrology, eWater’s forerunner organisation, the . The development team for music includes:

• Professor Tony Wong (AECOM)
• Professor Ana Deletic (Monash University)
• Assoc. Prof Tim Fletcher (Monash University)
• Hugh Duncan (Melbourne Water/Monash University)
• Tony Weber (BMT WBM)
• Dale Browne (AECOM)
• Dr Chris Ryan (Catchment Simulation Solutions)
• Frank Yan (eWater CRC/BMT WBM)
• David Tetley (Catchment Simulation Solutions)
• Matt Hardy (BMT WBM)
• Luke McPhail (eWater Innovation)

Past music developers include:

• John Coleman (CSIRO Land & Water)
• Dr. Graham Jenkins (Griffith University)
• Lionel Siriwardena (Monash University)
• André Taylor (Monash University)
• Rick Wootton (Monash University)