Easy american/irish/sea folk for a new player?

My brother recently just got a synth, a Juno D-6, and sold me his gretsch guitar, he will also let me borrow the synth, i mainly like irish/scottish folk, country/rag time/porch music, foc'sl'e/shanty/shanty adjacent, some folk punk as well.

It does have patches for guitar, honky tonk, bagpipe, etc

What would be some easy tunes to learn to play on this 61 key keyboard? rag time looks hard for a beginner