 At the other end of the spectrum, treble clefs with an "8" positioned above the clef may be used for the piccolo, penny whistle, soprano and sopranino recorder, and other high woodwind parts.A treble clef with a "15" above (sounding two octaves above the standard treble clef) is used for the garklein (sopranissimo) recorder, whose lowest note is two octaves above middle C.

The F clef can also be notated with an octave marker.The F clef notated to sound an octave lower is used for contrabass instruments such as the double bass and contrabassoon.