Projects / Impro-Visor


Impro-Visor is a music notation and playback tool for helping jazz musicians learn to improvise. It features a notation GUI, automated playback of chords and rhythm using MIDI, and improvisation advice provided in a variety of ways, including being able to improvise jazz itself. Data are stored as open-format text files. MIDI and MusicXML export are also available.

Operating Systems

Recent releases

  •  17 Jun 2014 00:35

    Release Notes: The Style/Section editor has been changed to allow greater flexibility. There is a virtual keyboard for entering notes on the screen. There is now an option within Import MIDI tracks from File to infer chords. The Style Extractor no longer requires a leadsheet file to specify chords; extraction is done only from MIDI files. The grammar formalism contains some new constructs, including the ability to specify relative pitches (rather than just abstract notes), and other built-ins. The roadmap analysis algorithm has been changed to use harmonic tempo.

    •  15 May 2012 01:01

      Release Notes: This release improves real-time MIDI input, allowing recording of interleaved improvisations from the user and the computer.

      •  02 May 2012 08:27

        Release Notes: This release adds melody importation from single tracks of a MIDI file to a leadsheet, updates the style pattern extraction feature, and provides a banner on the first launch which tells users important information, such as how to set MIDI devices.

        •  03 Apr 2012 07:12

          Release Notes: Version 5.12 will hang if a user tries to create a new blank leadsheet. This release removes that problem.

          •  31 Mar 2012 23:58

            Release Notes: This release adds volume specification options to the style specifications, changes the Style Editor and Piano Roll Editor to accommodate volumes, changes the layout of the Piano Roll Editor so the controls are at the top, allows percussion instrument names to be names rather than numbers, allows assigning of MIDI channels, and adds an option to send MIDI Bank 0 Select before notes (this is set in the MIDI Preferences panel).

            Recent comments

            05 Aug 2009 07:53 keller91711

            This is the original Impro-Visor program, with new enhancements for grammar learning and other features.


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