Over the years, Soni Siecinski has learnt to turn constraints into opportunities for exploration. Now a Master’s student at the CNSMDP in Raphaël Pidoux’s class, the young cellist—who was born with a deformity in his left hand—is juggling a busy musical schedule whilst pursuing a project that is as personal as it is ambitious: the design of a new prosthesis intended to revolutionise his playing, but also to provide him with greater comfort and freedom of movement. Soni plays