i could recommend you to use only smaller album art in portrait... leave a landscape the same size.
we still need a tap on it to toggle between pls and slider.

still i must point out that slider and rest of the things in now playing (scrolling pls and selecting tracks) is not so responsive.

let me describe problem: when i want to scroll a track, it moves slider to desired time, than after a half of second, it put it back where it was, and it has not gone to the desired time...
maybe it is depending on a pressure (????)

and just to point out a small glitch: a slider is shrieked when a number of digits is increased in left of slider (current time)

aaaaaaand, some album arts it wont display (???)

all the rest works just fine
keep up the good work