Overview of ALL symbols

[misi01]

I'll try and explain what I'm seeing EXACTLY so everyone understands.I'm playing music from the daily mix put together for me (great idea).

If I click on the thin line showing what's playing (just above the home, search, radio etc icons) I see the current artist's cd cover.underneath,I see the pause and skip forward/backward buttons.  TO THE LEFT AND RIGHT OF THESE I see a heart icon and a circle with a diagonal dash across it.

Okay, this is where I'm confused. If I click on the heart I get a message saying "do you want to save this in your library", and a line goes across the tablet, giving me the option to regret my choice (?). Question is, what do I do to regret my choice; how do i swipe or whatever. Secondly, there's a bug here (?). If i swipe the cd cover left to go to the next song, the heart is STILL marked in green (shouldn't it go back to "ungreen" ?)

In the same way, if I mark the dashed circle, it THEN says will you remove ALL songs by the artist. NO, I only want to skip THIS song from now on.

Is this bad design, or am I missing something?  Thanks

[IHS15]

Someone answer! I too am baffled by this "remove" symbol. I pressed it figuring it would remove one song on my Daily Mix, instead it left the song, and is now lit up green on the whole playlist. Halp?