Where can I go to find DIY music instrument and interface tutorials and project ideas?

If you want to find even more instruments and interfaces that people make, check out some of these sites and use some of the suggested search terms:

Suggested Search Terms

• music
• sound
• audio
• MIDI
• arduino
• makey makey
• PVC pipe
• acoustic
• instrument

General DIY Tutorial Sites

If you want to find even more instruments and interfaces that people make, check out some of these sites and search for any of the following words “audio” “sound” “music” “MIDI” 

• Instructables
• MakeZine Projects
• Adafruit Projects (focused more on digital and electronic projects)
• Hackaday.io Music Projects  (focused more on digital and electronic projects)

More Specific Sites Dedicated to Music Instrument Building

• Cigar Box Nation (for cigar box guitars, ukeleles, and other instruments)
• The Musical Instrument Makers Forum
• VulpeInstruments