Sorry, English is not my first language. I meant that a direct comparison is easier when listening to the song in higher and lower def without a longer pause in-between. It should be obvious, but I just meant it to show how close of a gap it is between high and low def.

I listened to a wide variety of genres and have not testet it with specific songs.

I can't tell the difference if the time of comparison is reasonable far apart. In tests like you mentioned, there are songs where I notice the difference and some where I don't. I guess what makes it even more confusing to some people is bit perfect playback, that can actually make a (small) difference.

I use Spotify and Bandcamp for the library and and if a song is available on tidal, I listen to it there. You might find everything you need on tidal - some of my favorite bands are just a little bit too obscure.

I don't use or pay for master quality though. MQA is a hoax.

I am very surprised that a lot of comments here say that Spotifys Sound Quality is enough. I can tell the difference as long as I am listening on my better gear...

I don't own the Ghost, but I highly recommend at least further looking into them. They are compared with the Meze 109 Pro, an 800$ headphone. Of course, they are not as good as them, but for their price, they come close.

They have, for example, broken this guy:

https://www.youtube.com/watch?v=L3519fG0uqg