F clef

Figure 1.8: It is rare these days to see the G and F clefs in these nonstandard positions.

In addition to this Guido is generally credited with the introduction of the F clef.

The F clef is on that line which its interior termination is on, and which it curls round either to the right or the left, and which has a dot above and below.

The G clef, also, when first introduced, was often written upon the third or the first line; the F clef, moreover, was not definitely established on the fourth line until toward 1700.

When the G clef is used the staff is usually referred to as the treble staff, and when the F clef is used, as the bass staff.