7. Keyboard
Next in line on our list of easiest instruments to play while singing are Keyboards that provide one of the best accompaniments for voice one could hope for. Really, if you can play keyboard there is nothing else you actually need. However, the both-hand coordination is a tad bit difficult to master. As long as you can just play the chords, covering a song on a keyboards or piano should be relatively easier. While most songs can be played on the instrument, ballads are especially suited to be covered on keys.