My Ericsson (w880i) has a program called music mate with three functions: metronome, guitar chords and virtual keyboard. I haven't found a tuner for Symbian OS, but the virtual keyboard can be used to tune instruments.
For the treo you can get both metronomes and tuner, "perfect pitch" is good.
For the treo you can get both metronomes and tuner, "perfect pitch" is good.
