Score Trekker
Micro music maker in your Web browser.
Free tracker/sequencer with an easy quad-pane interface, MOD, MID, VGM chiptune import.
With colours and emoji instead of rows of numbers, mind-mapped machines, an adaptive-column sequencer, effects painter, and an orchestra library.
Utiliizes all current WebAudio APIs.
st.1up.org
Live demos for beginners, fully featured for virtuosos. Human-editable JSON+mp3/zip fileformat. Standalone embeddable 32k Web playroutine.
Updates in the forum. Enjoy!
[Submitted by 1up_org]