I got it in one submission by playing the sample, picking a note and removing it if they don't match what I heard. Was that cheating? It's been a few decades since I last played viola and I've honestly forgotten the tone:letter mapping.
My partner (who finds these puzzles more challenging) does this but still often completes the puzzle in more than one guess because they just want to test out how accurate they were on the first try and make use of the grey/yellow tiles to get closer to the answer, haha.
This is available in "hard" mode!