Flat: Create, compose, collaborate, play, and print your sheet music using the world's most simple and intuitive web-based music writing and composition software
Musopen provides recordings, sheet music, and textbooks to the public for free, without copyright restrictions.
Musopen is a non-profit based out of San Francisco, CA.
Metronome+ is so much more than just a metronome. It also offers a chromatic tuner, record mode, loop mode, setlist and pitch player- that all work simultaneously with the Metronome.
"Simple to use and brilliantly designed" -Evolver.fm/Wired.com
"...cleanest, smoothest-operating metronome app we’ve ever come across" -ibtimes.com