, its triple by
, quadruple by
, and quintuple by
. Rests were indicated thus:
. All of these signs were, like our modern notes, set over the text. While the system was thoroughly worked out in its technical details, its cumbersomeness would suggest that in practice it was of less use than in theoretical exposition. No wonder, then, that few compositions were, as far as we know, actually written down, and of those only six are preserved to us. These are as follows: