Tuba: 5th grade - first two weeks of 9th grade
Piano: Since 10th grade. I have a Yamaha PSS-160 with like 12 instruments and beats, a crappy memory (remembers up to 50-ish notes and can only keep your tempo correct and remember every note you play if you play it very slow and hold the notes), and instruments that sound 0% like their real counterpart. I did receive a PSS-480 with 100 instruments, 100 beats, 10 memory slots for whatever you wanted, and a synthesizer..... the voices sounded closer to the respective instrument.... after about 3 months of having it, it messed up: It drops all F and B notes. If it used to do that, you had to hold the next key up from it (chromatically, so F#, or B#) and keep it held to play the F and Bs. Now, said notes are completely broken, so I've reverted back to the crap PSS-160, which bothers me. (PSS-160 = mine was built in 1986)
I've learned everything I know (50+ songs) by ear because piano sheet music is God-awful. 6 note chords, signs i've never seen (hey I played the friggin' tuba... I had quarter notes, whole notes, half notes, and some 8th/16th/32nd notes sprinkled in there), and remembering which key everything is in and what it affects is too annoying for me.
Wish I had lessons and an actual keyboard.