modify notes in a diatonic

I enjoy playing in first position, folk, old time and gospel and like the sound of a golden melody and special 20. I want to be able to play first position in holes 1, 2 and 3. I would like to modify it to reflect the notes of a chromatic (I have a chromatic but don’t like to play them). I can’t bend to get a “clean” note, so looking at an alternative and better sounding solution.

Question. Can I trim or file the reeds in the first three holes a full step or more higher in pitch to accomplish my purpose? Will the gap between the reed and reed plate make the reed un-usable? I have a few cheap c diatonics that I would like to experiment with.

Your comments would be appreciated. I am just getting back to playing harmonica again and enjoying it.

You could try a solo tuned harmonica. It has twelve holes and 3 complete octaves, but no slide.

G-Man’s suggestion is the best.

I have a solo-tuned Hohner; and it’s one of my favorites:

Good luck!

Keep On Harpin’!

Thanks for your suggestions, will check it out