Project Fixup - Meet people, not profiles
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
TEEM — Meet offline - People & Activities Nearby
JJazzLab - Fed up with boring backing tracks ? Try JJazzLab!
FriendsTonight - Meet new friends to join your friends, tonight
Guitar Pro 7 - Create, play and share your tabs