This piece is not really a new piece, although neither is it a new version of an older piece. But let's be clear : the tape used in 'Musique Socialiste — programme commun' pour clavecin et bande, written in , the same year as the signing of the Programme Commun de la Gauche, is the same one featured here.
As far as the score is concerned, even if it's not entirely new some of the same notes are used , it contains new and different propositions. I'll try to explain. This means that the notes which for the classical musician are codes for interpretation, signs to simply reproduce instrumentally, become instead indications of ambiance.
The history of this score is in a way the history of an experience, hence the title « thoughts on writing ». Classical musicians have experience of overall form, and therefore of a musical direction with progressions and digressions. Jazz musicians have experience of the moment, and the detail, the rhythm, and intuitive communication between them.
This is why this score contains fewer notes, and especially, as specified later on, notes which are not necessarily to be played but are rather indications to an overall direction. If I said that it was more of a new piece than a new version, it's because the music which results is totally different.
You could say that there are similarities in their expression, or I might even dare say after looking it up in a dictionary that there's a lyrical affinity.
