Aria Maestosa is an open-source (GPL) midi tracker/editor. It lets you compose, edit and play midi files with a few clicks in a user-friendly interface offering score, keyboard, guitar, drum and controller views.
NEW
Added support for recording from MIDI keyboard/instrument
Support looping playback
Under Mac OS X, add support for selecting soundfont
Added support for multiple program changes (multiple instruments per track)
Support sending midi output to external devices
Improve selection to preview which notes are included
Auto-extend song length when moving notes past end
Support for importing lyrics events (not yet for editing them)
Nicer symbols on printed scores
Fixed reading files with accents in their name on Windows
Added ability to drag-duplicate notes
Allow entering precise values in the controller editor
Allow finer pitch bends
New translations (Russian, Portuguese)
Add option to check online for new versions of Aria