Fit in 15 Minuten is aimed at musicians who do not play much, who never have enough time and wish to maintain and improve their cello technique in a concentrated and efficient quarter-hour, as well as at musicians who play much as beginning of a lengthy practice or rehearsal phase. The exercises contained in this volume range from very easy exercises – some even on open strings only – to short extreme exercises which can be combined to form an individual programme at various levels of difficulty.