One technique that many people start and stick with is playing block or solid chords in the left hand. This basically means playing the whole chord in your left hand while playing a single melody in your right hand.
Do you play piano chords with left hand?
Playing Piano Chords With The Left Hand
This is a way for chords to be an accompaniment. If you want to play a melody in your right hand or help someone learn to sing a melody, your left hand can accompany this melody by playing the chords in the left hand.
What are the left hand notes for piano?
C, G, and F major scales for the left hand. As with right-handed playing, use the correct fingerings as indicated by the numbers above each note. How and when you cross your fingers is very important for obtaining a smooth sound and comfortable left-hand technique.