I was recently watching a video of Jethro Tull performing, with Ian Anderson on flute.
His right hand appears to use the pads of the medial, rather than distal, phalanges.
I.e. the left hand uses the end joint of each finger to cover the holes, but the right hand uses the second finger joint instead.
Is this standard technique for flute?
(I've found that it is standard for bagpipes, but can't find anything specifically for flutes.)