MusE updated to v2.2 - incl. LV2 Support

Version 2.2 of MusE, the free multitrack virtual studio for Linux, is now available, featuring support for LV2 synths and effects.

Major feature improvements of this release includes:

• Support for LV2 Synths and effects:
  • effects are supported both in Effect rack and in Arranger.
  • State interface.
  • Worker interface.
  • Instance-access.
  • KX studio Programs interface + extended programs interface to support per-channel bank/patch change (only Yoshimi now supports this feature).
  • Common must-have features: Atom, buf-size, event, options, uri-map, urid.
    • Other extensions: CV type lv2 ports.
    • LV2_TIME__Position.
    • Atom_Event_Transfer support for plugin<->UI communication.
    • LV2 path MAP and MAKE extensions.
    • LV2 LOG extension.
  • UI interface. Supported UI subtypes:
    • QT4.
    • GTK2.
    • GTKMM2.
    • X11.
    • External interfaces (from kx studio specs).
    • idle callbacks.

• Yet another MAJOR audio engine and plugin/synth process chain re-write:
  • Track controllers (vol, pan) now sample-accurate and near noise-less.

Numerous bug fixes and minor enhancements:

• Metronome with accent clicks and replaceable clicks.
• Synths rearranged in separate menus.
• Reworked the PluginDialog to use a ui file and give more filter possibilities.
• Added [HOME] button to file open dialog.
• Ignore undo/redo while recording.
• Fix crash reported by LakeIshikawa: Pressing delete while clicking or dragging events or parts.
• Fixed copy/paste problem: Paste copies not clones, if the original parts/tracks have been deleted.
• More commands support Undo/Redo, like setting global tempo.
• Some new scripts, RemoveAftertouch, TempoDelay.
• Fix song not 'dirty' on many operations (close was not prompting to save).
• Instrument Editor now basically complete: Added Initialization Sequence editor.
• Sysex event editor now allows selection from pre-defined Instrument Sysex list.
• Revised and edited Roland SD-50.idf by Patrick (split into GM2/nonGM2).
• MusE now imports GM2 MIDI files. (Properly selects GM2 instrument.).
• Added a visual metronome to Bigtime.
• Added line drawing of tempo in graphical master track editor.
• Fixed bug (issue #342 Moving Aux sends crashes muse).
• Added more keyboard shortcuts in MIDI editors.
• Mods/fixes to MIDI Input Transformator plugin:
• When MIDI in is enabled in drum editor the selected track is moved along with the triggered key.
• Fixed bug with playback of drums clicking on notes in the new drum editor, it was playing the wrong instrument.
• MESS synths (esp Deicsonze): Controls (like Track Info program) and synth controls now mirror each other, both ways.
• Deicsonze softsynth: Fixed: Not remembering settings + ladspa plugin settings, MIDI controllers moved to NRPN14 type.
• Native VST: Call idle periodically. Makes some plugins like Glitch work, as per LAD mail.
• Change window title when there are unsaved changes.
• Add auto-save feature, when enabled tries to save after 5 minutes.
• Added pitch control to SimpleDrums, first version.
• Fixed Ctrl+arrows in the arranger so the track list is scrolled.

For more information and additional changes see the full change-log at: github.com/muse-sequencer/muse/blob/muse_2_2/muse2/ChangeLog