F clef

1. A clef which indicates the position of F below middle C in a given staff.

   The F clef may be placed on the third or fourth or fifth line (from the bottom) of a five-line staff, and is then called the baritone clef, bass clef, or subbass clef, respectively.

   Bassschlüssel

   ключ фаključ fa, басо́вый ключbasóvyj ključ

   a clef that puts the F below middle C on the fourth line of a staff

regular