MY Dear Doc,
As I have pointed out extensively in several topics in these forums the follwoing scales are played by various ethnic groups and they are EASILY playable on an unkeyed Irish D flute or whistle ( I will use ethnic indian names):-
with XXX XXX tonic
Bilaval Scale (India, Middle East, Europe including Irish and Scottish ethnicities) - innumerable raags, tunes etc
Khamaaj Scale with a cross fingering for C (as above) - innumerable raags, tunes etc
with XXX XXO tonic
Kaafi Scale (India, Middle East, Europe including especially Irish and Greek ethnicities) - innumerable raags, tunes etc
Asaavri Scale with a cross fingering for C (India, Middle East, Europe and especially Mediterranean ethnicities)
- innumerable raags, tunes etc
with XXX XOO tonic
Bhairavi Scale (India, Middle East, Mediterranean and Eastern Europe including Flamenco) - innumerable raags, tunes etc
Bhavapriya Scale with a cross fingering for C (India and possibly others) - rare
with XXX OOO tonic
Kalyaan Scale (India, Middle East, some Mediterranean and Eastern Europe) - innumerable raags, tunes etc
Bilaval Scale with a cross fingering for C (see above)
- innumerable raags, tunes etc
with XXO OOO tonic
Khamaaj Scale (see above) - innumerable raags, tunes etc
Kaafi Scale with a cross fingering for C (see above) - innumerable raags, tunes etc
with XOO OOO tonic
Asaavri Scale (see above) - innumerable raags, tunes etc
Bhairavi Scale with a cross fingering for C (see above) - innumerable raags, tunes etc
with OXX OOO (or other cross fingered) tonic
Maarwa Scale by including the C# and dropping the D (India and possibly others esp. Middle East)- many raags
Kalyaan Scale by dropping the C# (see above) - innumerable raags, tunes etc
with OOO OOO tonic
C# D E G A C C#+
the scale for hexatonic Raag Gurjari Todi
Then of course there are myriads of gapped scales with different sorts of pentatonics and hexatonics which you get by dropping one of more notes from any of the above.
Lets, for example take tonic XXX XXO the common Dorian tonic in ETHNIC Irish music:-
BY dropping the third interval we get hexatonic scale for Raag Shuddh Saarang which is also common in Irish melodies (eg Cliffs of Dooneen, O’Keefe’s Slide)
or by dropping the 6th note we get hexatonic scale for Raag Plasi and others which is also common in Irish and British Melodies (eg
ASh Plant reel - some versions, Mattie Groves,) also Delta Blues ..
and so it goes.
HEY! Its not like diatonic major tone holes are intrinsically non ethnic! 