Plug in any YouTube video and Chordify will send back (mostly accurate) chords to play that song almost immediately.
Noteflight is a great way to create, store, listen to, print, search and share notated music online. If you are a composer, you can use Noteflight to author and manage your compositions. If you are a performer, you can use Noteflight to create and share sheet music that you like to play. For all the teachers and students, you can use Noteflight to communicate and collaborate in learning music.
Ever want to learn the guitar? Need to improve your shred? This site has 2,617 free guitar lesson videos.
Developed by a music student, this application helps users learn music theory concepts and improve their ear. It also includes a basic score editor for composition students.
AudioTool allows you to create and mix your own music, generated from a range of tools that you select and plug in, complete with cables. Each tool looks and operates like its real life counterpart, enabling great levels of control and creativity for your students.
Dig.ccMixter is a community music site featuring remixes licensed under Creative Commons where you can listen to, sample, mash-up, or interact with music in whatever way you want. This is great material for podcasting. If you're into sampling, remixing and mash-ups grab the sample packs and a cappellas for download and you can upload your version back into ccMixter, for others to enjoy and re-sample.
If you're interested in how songs are arranged, this tool helps visualize the chord progressions in different songs, and lists some popular progressions. This is useful for music students and just general songwriting hobbyists.
Musopen is a collection of public domain music, primarily classical, in both MP3 and sheet music format. Music sheets range from simple instrumental pieces to symphonic arrangements.