gaspardpo / ellerehcseb

Chords Finder. An application where I can enter notes, and it give me the name of the chord: C, D#, F#, A -> Cdim7

Ellerehcseb

Chords Finder

an application where I can enter notes, and it give me the name of the chord: C, D#, F#, A -> Cdim7

Algo:

• all chords are generated,
• then we search in the list for the chord with the same notes as input.

Archi

core folder: all "business" about music.
androidAdapter convert String to core business.
only one activity.

App, GUI, UX :

• input: note as character
• input: note as button
• input: note on piano keyboard
• input: note on piano keyboard
• input: note on guitar/uku/banjo/... neck
• output: chord name
• output: chord info (name, interval, third,
• display the chord name using b and # ?
• uses character (A, B, C ...)
• uses # or s for sharp
• uses b for flat
• uses notes (Do, Ré, Mi ...)

infra:

• Continuous Unit Tests
• Continuous End-to-End Tests
• UI Test using mock
• build apk
• deploy on store?
• dependecy injection: koin?

business core:

• perfect major
• perfect minor
• (dominant) 7th : maj7, min7, m(maj7)
• diminished
• diminished seventh
  ...
• Don't use the first notes as root (inversion).
• chords with exactly the given notes
• chords with other notes (not only the ones given as input)
• chords with other notes, using the first as root?
  ...
• sharp/flat (using fretted instrument, D# == Eb)
• error when chord not found ...
• use a csv config file with the chords list ?

Chord to notes

From the chord, give the notes.