- Microtonal synthesizer
- Hearing range video
- Why 12 notes to the octave?
- Continued fractions
- Bach played in 3 temperaments
- Guitar with extra frets
- Music in the Bohlen-Pierce scale (Wikipedia's entry on the Bohlen-Peirce scale)
- Oud music in maqam rast (an Arabic melodic mode; an explanation of maqam music and Wikipedia's entry on maqam)