POS or Function kit:
VOLUME UP, VOLUME DOWN, MUTE, NEXT TRACK, PREVIOUS TRACK, PLAY,
or just plain:
UP, DOWN, MUTE, NEXT, PREV, PLAY ?
What about RECORD, EJECT, FAST FORWARD, FAST BACKWARD,
NOISE, MONITOR, MONO, STEREO, QUADRO, PHONO, TAPE, ... ?
Are these standard symbols a possibility? Does SP already have them ready?
Top row in picture, 1st possibility
1. Rewind, (that can also act as previous track, or rewind when held)
2. Play, (can be used via software to act as play/pause)
3. Fast Forward, (that can also act as next track, or ff when held)
4. Mute
5. Volume Down (this one features two sound waves)
6. Volume Up
Middle, Eject Icon
bottom row in picture, 2nd possibility (These look just like the media keys you'll find on macbooks)
I suggest these if going with symbols, as they look the simplest and easy to make.
Botton row in picture 2nd possibility
1. Rewind, (that can also act as previous track, or rewind when held)
2. Play/Pause, (can be used via software to act as play/pause)(I prefer just the play icon as top row)
3. Fast Forward, (that can also act as next track, or ff when held)
4. Mute (Just speaker cone w/ no sound waves)
5. Volume Down (this one features one sound wave)
6. Volume Up
I did not include keys such as record, eject, fast backward, noise, monitor, mono, stereo, quadro, phono, or tape, as those are keys that most consumers don't use on a regular basis. If one wanted fancy keys like that, it'd prob be best to set up a seperate SP order or buy a new KB for things like ProTools, Logic, etc. I don't particularly care for eject, as disc's are not used as often anymore.
But the average person probably uses those media keys to control music playback from iTunes or any other media player.
If symbols are not an option, then I would think characters could look like...
Fast Forward looks a little much typed out on a single key, so I think an abbreviation looks best, and to keep things symmetrical, Rewind abbreviated to REW.
Edit: of course, these would be of top row key profile, and in the darker shade gray/black w/ white font, I would imagine putting them in place of function keys on the keyboard. For those using OSX, keys like Print, Num Lock, and Pause are remapped to F13-F15, that's where I currently place volume keys in OSX.