Play with your music theory: meet the black keys

G♭ major pentatonic

The G♭ major scale without the 4th or 7th scale degrees

E♭ minor pentatonic

The E♭ natural minor scale without the 2nd or 6th scale degrees

The pentatonic scale is very ancient

Wulf Hein, an “experimental archaeologist,” plays a replica of a 30,000 year old bone flute tuned to a distinct major pentatonic scale in The Cave of Forgotten Dreams

E♭ blues

The E♭ minor pentatonic scale plus the note in between the 4th and 5th scale degrees

The blues: Major? Minor? Neither? Both?