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