Atonal
No tone or key
Chromatic
Notes progressing by semitones
Dominant key
The key a perfect 5th higher than the tonic
Key
Major or minor scales
Major key
Major 3rd between notes 1 and 3
Minor key
Minor 3rd between notes 1 and 3
Modulation
Change of key
Pentatonic
5 note scale
Relative major or minor
Have same key signature