Composition
I believe one can define a composition as "Opus" only whenever each little part of it doesn't require any addiction or taking away (even though these ones could be multiplied or divided).
By these basics, my interest has always been aimed to approach the music concept in its overall round meaning, from composing to playing, passing through the instrumentation, the orchestration, the arrangement and the transcription of the music material.
Peculiarly appealing is the impromptu composition environment, during which, the playing skills, tensed and driven by the music sensibility, become composition straight away during the playing act.