17, No.
2, the first phrase; here, again, the melody runs on (through tones which embellish the cadence-chord, _f-a-c_) to the last 8th-note of the fourth measure. (3) A certain--entirely optional--number of tones are borrowed from the value of the cadence-chord, as _preliminary tones_ of the following phrase.
An illustration of this has already been seen in Ex.
14, No.
2 and No.3.