CyberGene
i can only recommend beyerdynamics, the 160$ dt 770 pro (a classic at this point with a somewhat spacious sound especially for a closed back hp, there are three different versions of this headphone with three different impedances (250, 80, 35ohms), the best is IMO is the 250ohm one, cause its clearer, and there's a bit more separation and wider stereo image is going on with it, however you "must" have a decent audio interface to be able to drive it, phones and computers aren't powerful enough to make it enjoyable, the worst case scenario is when you plug these headphones into a laptop, not only that you'll get a weak output signal but it takes a lot of battery charge.
the next option will be beyerdynamic dt 700 pro x
it had a softer top end (not as bright as the 770s) and bit more depth in the bass (not that it has a boomy or boxy bass, it actually goes deeper and reaches lower frequencies)
the best thing about this headphone is that it doesn't need much power to be able to sound decent, the impedance is relatively low (at 45ohms) even an iPhone can drive them to an acceptable level (They're so effing loud with an audio interface)
of course you have to pay for that, it's 300$ but I'm sure there are lots of dealers with lower prices.
anyway... there's another's one that i don't recommend, not because it's a low quality product, but because it's truly an overkill for playing piano or listening to music, however if you really love super detailed headphones, and you have a very good audio interface (we're talking about apolo twins here) and most importantly you can spend so much money on a headphone, then there's no reason not to, the dt 1770 pro, they have all the qualities that I've mentioned with the other two, very bright and punchy with an outstanding bass, detailed mids and a decent stereo separation, however They're so "in your face"
they don't let people relax when listening to them and that's a good thing when you're a producer/mix engineer cause you'd want to find the problems in the music you're working on, but equally unpleasant when you're a casual listener, ESPECIALLY WHEN PLAYING AN VIRTUAL INSTRUMENT, i can't say how annoying it is.
but for mixing and mastering they're some of the best out there (although most pros prefer the 1990 pros cause they have all of the qualities I've mentioned with the dt1770 but they're open back so they also have great sound stage and stereo separation)
almost forgot: they're 600$ a pair
i hope it's useful🤍