I want to learn an instrument, and am thinking about the piano.  Is that a good choice?
Yeah you will like it. It is a stringed musical instrument invented in Italy in 1700s.
The piano is a stringed instrument?  Where are the strings?
Piano
The piano is an acoustic, stringed musical instrument invented in Italy by Bartolomeo Cristofori around the year 1700 (the exact year is uncertain), in which the strings are struck by hammers. It is played using a keyboard, which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings. 
The word piano is a shortened form of "pianoforte", the Italian term for the early 1700s versions
StarrBoard
The StarrBoard is a stringed musical instrument invented by John D. Starrett and patented on July 23, 1985.
It is a tapping instrument similar in concept to the Chapman Stick except that it is played on a stand (like a keyboard) rather than worn on the body. Another difference is that it is played with fingers parallel to the strings rather than perpendicular. The strings are spaced so that an octave span (13 strings) is the same distance as on a standard piano, 6.5". The frets