At the sound, I tried it with very different types of music, and I thought it was the most comfortable with classical music, specifically the arias. But as soon as the orchestral masses show the tip of their nose, the headphones start to hurt and everything is mixed a bit. With rock or blues, I had, at low volume, a tonal balance to the severe acute sensation, but without genius and without precision. Voices as exceptional as those of Al Green, Antony Brittany Howard Johnson or (for non-limiting example) are a bit cruel terrain. As with the classic, it is the more sober songs (one vote regardless of instruments) that are best transcribed, whereas the sonic outbursts are a little clutter.
Overall, it remains a good quality product that should not go in the trash after a few weeks.