Note 1 — Chapter I · KEYBOARD INSTRUMENTS AND THE DEVELOPMENT OF KEYBOARD TECHNIQUE

It should be noted in passing that during the early stages of the growth of polyphonic music, roughly from the eleventh to the fifteenth century, composers had brought over into their vocal music a great deal of instrumental technique or style, which had been developed on the crude organs, and on the accompanying instruments of the troubadours. In the period which we are about to treat the reverse is very plainly the case.