The Listening experience DatabaseFreely searchable DB that brings together a mass of data about people’s experiences of listening to music of all kinds, in any historical period and any culture.
Grove Dictionary of Musical InstrumentsThe Grove Dictionary of Musical Instruments, second edition, is the largest, most comprehensive reference publication on musical instruments of the world yet produced.
Media
Smithsonian Global SoundThis link opens in a new windowAn encyclopedia of the world's musical and aural traditions, in streaming audio.