Playlists on Samsung player

[koche005]

Hippy midlife crisis: a shiny new red Prius. Links fine to the S4 and does what it should.
But, I cannot get it to automatically (with Tasker) play a playlist.
1) the Prius always selects the Samsung player.
2) I can't find a way to set a different default player.
3) I can't find a way to make a shortcut to a Samsung playlist so I can get at it with Tasker
4) if I have tasker open a playlist from another player, I have 2 players going and I have to manually select the alternative one
5) I used Synctunes to get my iTunes playlists synced with the Samsung player, and ES File explorer to put a shortcut to the Syntunes playlist on my home screen. Even though the default player has the Synctunes playlists in there, if I try to open the playlist file directly, I get a message that the file type isn't supported.

I'd be happy to do any one of the following:
disable the Samsung player
select a different player as default
create a shortcut to a Samsung playlist

I could do all of these things on my old Galaxy S. This "upgrade" has me down.
Any suggestions?