16 Royalty-Free Audio Tracks for "Augmented Fourths"

Undecimal augmented fourth on C (15/11): F↓♯+. 536.95 cents.

*Augmented fourth on C = F♯. Equal-tempered: 26/12:1 = 600 cents. MIDI pitch bend: none

*Classic augmented fourth on C = F♯. 25/18 = 568.72 cents. Limit: 5-limit. MIDI pitch bend: 127,85 on P4

*Pythagorean augmented fourth on C = F♯++ (Ben Johnston's notation). 729:512 = 611.73 cents. Limit: 3-limit. MIDI pitch bend: 96,67

*Octave, fourth, and just chromatic semitone/Compound just augmented fourth on C = F♯ (Ben Johnston's notation). 50:18 = 1768.72 cents.

*Just augmented fourth (45th harmonic) on C = F♯+. 45/32 = 590.22 cents. Limit: 5-limit. MIDI pitch bend: 112,60 Midi pitch bend on ~B 112,60 for 590.234375 cents rather than 600.

*Bohlen-Pierce scale: interval between C and B on C = B. Just: 25/18 = 568.72 cents. Limit: 5-limit. MIDI pitch bend: 127,53

*Augmented eleventh on C = F♯'. Equal-tempered: 218/12:1 = 1800 cents. MIDI pitch bend: none

*Classic augmented eleventh on C = F♯'. 25/18 = 1768.72 cents. Limit: 5-limit. MIDI pitch bend: 127,53 MIDI.

Fifteenth chord from Perry on C

*Twenty-third harmonic on C = F♯+. Just: 23/16 = 628.27 cents. Limit: 23-limit. MIDI pitch bend: 6,73

*Ninety-third harmonic on C = F♯+ (Ben Johnston's notation). Just: 93/64 = 646.99 cents. Limit: 31-limit. MIDI pitch bend: 5,79

Fifteenth chord from Marpurg on A: A,(C,E,)G,B',D',F',(A"). Resolves to C,E,G,C',E'.

Full diatonic fifteenth chord from Listz on B

A request for freesounder neilreynolds1980, intended as a soundtrack for the play dr faustus at the point the eponymous character is sucked into hell. A bit of technical information: the basic sound is a stacked set of ‘devil’s intervals’ (augmented fourths) with doubling at the octave, playing an instance of calf organ set to a truly horrifying demonic choir patch i created. The rest of the effects are accomplished using automation of this instrument as well as calf pulsator and calf filter in ardour. This sounds much better when downloaded than it does in the freesound player. The stereo image and sample rate are much reduced in the version you hear in the player.

*3125th harmonic on C = F♯+. Equal-tempered: 23125/2048:1 = 731.57 cents. Limit: 5-limit. MIDI pitch bend: 13,42 on A7