Whether the trill is to begin with the principal tone (represented by the printed note) or with the one above is a matter of some dispute among theorists and performers, but it may safely be said that the majority of modern writers on the subject would have it begin on the principal tone rather than on the tone above. Fig. 40.
When the principal note is preceded by a small note on the degree above, it is of course understood that the trill begins on the tone above. Fig. 41.
The trill is indicated by the sign
.
