Brushes
Santiago Quintans
Saxophones|Electric Guitar (1)
...to imprison the wind
Sam Cave
Piccolo|Acoustic Guitar|Cello (1)
Scales
Christophe Bertrand
Symphonic orchestra (1)
Presence absence degree
Paul Clift
Electronics|Accordion (1)
Union III
Mario Mora
Percussions|Acoustic Guitar (1)