The 6 basic improvisational exercises on a whistle or transverse flute or quena (rim blown flutes) or winds with reeds are the next 6
1) Correct covering of holes and scale fingering
2) Overtones awareness and octaves crossing
3) Ornamentations (Cuts or hammers, double cuts, slides (rolling or bends), vibratos, etc)
4) 2,3,4,5 etc Translations (tails or Alankaras)
5) Rotations (or permutations, including arpeggios of chords in 2 octaves and power chords too in 2 octaves and arpeggios or permutations or rotations of vector intervals of 3rd (trichords), 4th (tetrachords) and 5ths (pentachords).
6) Inversions (in pitch or rhythm of small musical themes.
7) Improvisations restricted in a pentachord (as in post 225) and over 3 chords.
We enlarge more on them. But the next 18+7 videos are very instructive too
A) 18 Videos by Phil (Kerry whistles)
https://www.youtube.com/watch?v=SQq2dbN5Xsk&list=PLiYGJiKPn5B3RN_xjtQ6ZktWFAg4HWv7Z&index=18
B) 7 Videos by Das (flute maker)
https://www.youtube.com/watch?v=7Ox55nMD9RE
