Pitch control
Positions changes
Vibrato
Senza vibrato - 0:01:33 - 0:01:47
Poco vibrato - 0:01:46 - 0:02:00
Vibrato normal - 0:02:00 - 0:02:14
Vibrato molto - 0:02:14 - 0:02:28
Double stops and chords
Ligeti Sonate pour alto seul III Facsar - 0:03:35 - 0:04:48
Pitch space
Xenakis Embellie bar 5-6 - 0:05:24 - 0:05:38
No frets: ideal for microtones
Grisey Prologue - 0:05:44 - 0:06:44
Microtonal systems
Beating and combination tones
Two notes at the same time : steady beating
Same with fifths and octaves
Tartini tone : when the beating speeds up