Harp

I play guitar so that one is easy for me.. lol

My grandfather taught me how to play the accordion 🪗 when I was a young lad 👍😅

For me....all of them are difficult.

I can't decide which would be the harder:

The violin family, with no frets.

The organ, especially a large one necessitating quite a lot of movement to use the pedals and to reach the stops and couplers arrranged on the sides of the console; with two to four keyboards, perhaps five on the largest instruments.

My old guitar teacher reckoned it’s the violin. Because it’s really hard to even get a sweet sounding note out of, let alone a coherent tune 😆

The bagpipes.

When I took music class in my second year of High School, my classmates and I were all given a turn at trying out the bagpipes.

And when it came to be my turn, I was blowing into the mouthpiece, trying to blow the bag up with air with no success.

And with all my classmates watching as I struggled to blow the thing up, I felt so embarrassed.

Plus, I felt like I was either gonna faint or bust a lung after about 10 blows.

I'm going for the pipe organ: three keyboards, pipes, bellows, nope not for me😱

Harp

... the fretless oboe-cordian. which I just now invented.

the trumpet requires very strong mouth muscles and proper breathing

i bet u can play it

I feel any instrument that uses control of breath has to be difficult - like a flute or a trumpet or a mouth organ.

Anything you have to blow into - I'd probably pass out after 2 minutes....

All