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I ran across a set of interesting images under "octave clef" at . Since this qualified as my "learn something new every day," I just wondered if other folks have seen these particular clef markings? I admit to never having seen one (and in fact own a couple cello sonatas which are marked w/ a standard Treble clef but are intended to be played sub*va).

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It's taken me years to be able to play treble and bass clefs, then you come along and tell me there are many more different ones. Help !! Yes, guitar is often written without the little 8. I suppose it's generally assumed. – Tim Feb 24 '14 at 9:09
@Tim There many different clefs. I've only seen bass and treble clefs in piano though. Other instruments use different clefs. Here is a list of clefs: – Caleb Feb 24 '14 at 16:25
up vote 6 down vote accepted

Music for guitar is written in the octave down G clef, so any guitarist that reads notation sees it all the time. Tenors (voices) use it too. Other instruments use other octave clefs. I was told piccolo and soprano recorder use the octave up G clef.

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Add xylophone (up an octave) glockenspiel (up a 15th), contrabassoon (sounding an octave lower). I think the celeste also does an octave transposition. However, these are rarely notated -- they are assumed by the player and the composer. The only place I've seen them commonly used is in concert pitch scores. I'm not a fan, myself -- I learned to do the transposition TO concert pitch when reading a score. I hate looking at a concert score and trying to figure out what the part looks like. – Dennis Jul 11 '14 at 6:30

Most mixed voices choir scores I’ve encountered are written with a G clef for women, a F clef for bass and a sub octave G clef for tenor. Complete with the little 8 below the clef.

So, yes, I encounter them on a regular basis.

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I only get to accept 1 answer, but yours is certainly useful as well. – Carl Witthoft Feb 24 '14 at 12:28
The SATB choir I sing in uses music where the tenor part is often written on the bass clef and often on the treble octave clef. Sometimes the same short piece can include both (!?!?!) for example He Smiles Within His Cradle (carol 20 in the Oxford blue book starts with the tenors on the bass clef and ends with us on the octave treble. Another piece we are singing has us on the octave treble clef but without the octave marking (!) but I assume that is a typographical mistake. – dumbledad Nov 11 '14 at 7:26
@dumbledad: I've encountered SATB music written with rhythmically-homophonic SAT on a G-clef staff (all at pitch) and a rhythmically-different bass part on a F-clef staff. It's also common for publishers to simply omit any sort of octave marking when writing G-clef tenor parts. In most cases it will be obvious which octave the tenors should sing. – supercat Nov 14 '14 at 21:03

Pavarotti wasn't called the "king of the high C's" because he could actually hit a high C in treble clef! The note he could hit was a treble C. However, it would be written the same as high C in treble clef (two ledger lines above the top) because tenor writing either has the sub octave G clef or it is understood to be there.

Violas almost always use Alto clef. (That's the so-called "movable clef", the sort of K or B-shaped clef that moves around to be Alto or Tenor or Soprano or whatever clef.) Alto clef marks the middle line as middle C. Cellos and bassons usually use bass clef, but will switch to tenor clef to write higher note passages without using too many ledger lines.

I've never seen anything but treble and bass clef in piano music either. Most pianists can automatically read any note with up to three ledger lines. Once it gets much lower or higher than that, the music transposes up or down an octave and uses the 8va symbol.

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