@PunaisetPimpulat It is a Lamy Joy.

A music nib can mean a lot of different things from one manufacturer to another. A "true" music nib IMO means an extra broad tip of some kind with 2 ink channels instead of just one. This definition holds true for the Pilot, Platinum and most other Music nibs but sometimes youll see them with just one slit (such as with Sailor brand). I dont consider this a music nib though it is labeled as such.

Best way to describe a music nib is a 03B (triple broad) nib that is extra-wet.

Even when a manufacturer honors this definition there is a lot of variation. The Platinum for example is the smoothest of all nibs, not the slightest bit of scratchiness. But it also doesnt have a particularly sharp profile so feels more like writing with a marker than a wet italic nib. With that said the nice thing about this pen is you can write with it in reverse very effectively. In this way it becomes a very sharp italic, almost as wet, but it is a bit scratchy.

The pilot music is a bit sharper when writing normally, a buit drier than the platinum but wetter than a normal nib. Not as smooth a writer but still fairly smooth.

There are even flex music nibs, but if you want a wet-noodle flex on a music nib your going to pay a lot of money for that. Best I saw was a waterman 52 with a music nib. But those are from 1910 and your going to pay in the hundreds.