Home / Forums / Buying a melodica / Which instrument for a cheap try-out? / Reply To: Which instrument for a cheap try-out? Reply To: Which instrument for a cheap try-out? January 23, 2018 at 1:27 am #9627 Helen RParticipant Thanks Alan! On a 25-key melodica, which keys can you comfortably play in? (I’m thinking of Irish tunes mainly).