Stave'n'Tabs - iOS and macOS notation and tablature editor with MIDI and MusicXML files support and chromatic...

OnlineSequencer.net - OnlineSequencer.net is an online music sequencer that allows users to create beats and music tracks.

Aria Maestosa - Aria Maestosa is an open-source (GPL) midi tracker/editor.

Jummbox - A modified Beepbox that have more stuff then Beepbox. It can be used just like Beepbox. The features of Jummbox is the same of Beepbox's features, but Jummbox have more stuff to offer.

Chordsheet Maker - Create chord sheets or lead sheets quick and easily from your iPad. Add rhythms, endings, segno, codas and all what's necessary for your musicians to know what's your music about. Transcription made easy!

AudioSauna - AudioSauna is a full-featured audio workstation for making music online.