What is "alto clef"

Counter tenor \Coun"ter ten`or\ (t?n`?r). [OF. contreteneur. Cf. Contratenor, and see Tenor a part in music.] (Mus.) One of the middle parts in music, between the tenor and the treble; high tenor.

Counter-tenor clef (Mus.), the C clef when placed on the third line; -- also called alto clef.

n. (context music English) A type of C-clef when placed on the third line of the staff in musical notation.

n. a clef that puts middle C on the third line of a staff [syn: viola clef]