Developed in 2004, BRELS MIDI Editor is a free, open-source (licensed under the GNU GPL) MIDI editor able to create and edit MIDI files with a simple, straightforward interface. The saved files have the smallest size possible. Their entire content is editable onscreen and the exact composition length is shown and controllable by the program. Yet, preexistent files can be cleaned and filtered, removing garbage and embedded malformations made by other tools.
Piano Roll Midi Editor Online
The program presents a minimalist interface, from its installation, which just requires the extraction of the 7zip/ZIP/RAR file without any modification to the system, to its commands, all shown onscreen, without menus or indirect paths.
Midi Editor Free
The source can be compiled with GCC with Strict ISO C options (-Wall, -pedantic and many others), preferrably in an IDE like Eclipse, to which it can be imported. You can use its internal API to incorporate MIDI funcionality in a Windows C application. You can read documentation of that API here (the text is quite ancient, has typos and is outdated regarding licensing). Check what's new in v0.08 in version history below the screenshot.
I recommend using the editor to make high quality and royalty free music, which is in severe shortage on the web due to the copynoia. If you have such works made with the editor or otherwise, I'll be glad to link to it.
MC Musiceditor is free/open source (GPLv2 or above) music notation software (Windows XP or above). The Lite version runs on Linux under Wine - and Windows XP and above. MC Musiceditor is developed by Reinier Maliepaard, psychologist, software engineer, musician and teacher at the ArtEZ Conservatorium Netherlands (music theory and music history). Record keyboard and MIDI inputs. Snap recorded notes to the grid. Play a metronome. When recording, gives a 4 beat lead in. OnlineSequencer.net is an online music sequencer. Make tunes in your browser and share them with friends! Made by Jacob Morgan and George Burdell Hosting 2,060,939 sequences since 2013 Buy me a coffee! MidiEditor is a free software providing an interface to edit, record, and play Midi data. The editor is able to open existing Midi files and modify their content. New files can be created and the user can enter his own composition by either recording Midi data from a connected Midi device (e.g., a digital piano or a keyboard). Free online MIDI Editor for creating polyphonic ringtones from scratch,increase,decrease,change ringtone volume,edit the desired portion of a midi file,converting from polyphonic ringtone to truetone and truetone to polyphonic ringtone formats,transpose octave,change tempo of MIDI etc. Other MIDI flipper projects. I'm not the only one who had this idea. Here are links to some other projects that do similar things: GitHub: pvrs12/midiinvert: Open source (MIT/Expat), Python. Uses the music21 Python module to synthesise a new MIDI file containing the flipped notes. The Twitter bot associated with this project is no longer online.