SOUND PLAYS o specific grades of difficulty not determined: Each Book contains easy and difficult material for selection and free assembly. Difficult material may be simplified as desired, or easy material made more difficult. o no set instrumentation: Occasional suggestions are made as to choice of instruments, but in principle there are no specifications. o interpretation, improvisation and composition fuse into one another: The rules help to clarify the intentions of the music, and to transform, extend, complement or replace the examples. o the pieces are supplementary to one another: The rules of one piece can be combined with those of another in various ways. There is no Iimit set to further revision by the user of the material offered. o no limitations of style

Variationen - Variations - Variations · Zwischenräume - Spaces - Interstices · Rhythmusgruppen - Rhythmgroups - Groupes rhythmiques