Interesting not tried click fingering as an
alternative way of tonguing (at 10:43)
also not tried thinking of vibrato in terms of
strawberry (triplet vibrato) capuchino (semiquaver vibrato)
i was aware of the wording associated with
using different tonguing positions
tatata (using front of tongue)
duhduhduh (using middle of tingue)
gugugu or cucucu (using back of tongue used in altissimo
to open up the throat and in double tonguing)