nanosleep() 'problem' solved

Excellent. Just more bogosity that has now been eliminated, stuff is sweet and smooth and running very reliably. Latency is lower than ever before, will try to set up 2 inputs on my scope to measure genuine delay between 'start bit of MIDI note out of keyboard' to 'I sense a disturbance in the Force'

Excellent progress at the new PIANA Towers (which overlooks Solsbury Hill by the way, for all you Gabriel fans out there). And offered as living proof of said view, here's the view of the hill snapped through my window during last week's outbreak of snowiness, with Teeny Tiny people on Teeny Tiny Toboggans whizzing down the slopes. Thinking about it, they are probably just far away. Which is apt, because their field is normally full of Teeny Tiny cows, I'm not sure where they were moved to for the duration of the snowy slopey activities.

Anyway, back on topic, I am aiming for a big public reveal of finalized PIANA hardware / kit in May - maybe even April - but in the meantime am working to build a prototype of the Raspberry Pi Chamber Orchestra, featuring 6 7 Pis, 6 synths and a synth controller, and 6 Teeny Tiny TVs. I just hope I can hand-build an op amp mixer that's clean enough, or it will sound pretty grim ...

All of this in my 'copious' spare time as I am now embarked on a massively time-consuming project on iPad.