A guitarist is read as feeling given a voice through the hands — emotion turned into something played. Folk tradition also ties the figure to romance and serenades.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.