BandGeek

BandGeek is a Music Theory Calculator for the iPhone and iPod touch. It allows Chord and Inversion calculation, Scale calculation, Diatonic Chord calculation, Pitch Class Set Interval Vector calculation, and Frequency and MIDI value calculation. It is the perfect tool for music theory students, composers, theorists, instrumentalists, performers, and anyone else needing quick music theory reference.

Chord Calculation
- Major
- Minor
- Augmented
- Augmented Major
- Augmented Minor
- Diminished
- Half-Diminished
- Dominant
- Minor Major
- All three Augmented 6 chords (German, French, Italian)
- 5, 6, 6-4, 7, 6-5, 4-3, and 4-2 Inversions

Scale Calculation
- Major
- Minor
- Harmonic Minor
- Melodic Minor
- Ionian
- Dorian
- Phrygian
- Lydian
- Mixolydian
- Aeolian
- Locrian
- Whole Tone
- Pentatonic
- Chromatic
- Blues
- Diminished
- Octatonic
- Enigmatic
- Hungarian Gypsy

Diatonic Chord Calculation
- Major
- Minor
- Ionian
- Dorian
- Phrygian
- Lydian
- Mixolydian
- Aeolian
- Locrian

Pitch Class Set Interval Vector Calculation
- Calculation of interval vectors, Forte numbers, and set type

Frequency and MIDI Calculation
- Calculation and MIDI reference of pitch classes C-1 to B9