I transcribed the vocal melodies of three classic one chord songs: Get Up Stand Up, Spanish Moon and Papa Was a Rollin' Stone. There are commonalities in all three songs. First, they all use either a minor triad or minor 7th chord. Also, they base the vocal melodies around the tones in the chord. I have the sheet music for the vocals for all 3 songs with some quality notes.
every open and closed guitar chord in standard tuning
All chords are available as PDF files