The Unity Dash context menu for Rhythmbox currently has separate items for ”Play” and ”Pause”. I think Totem does better by eliminating those for a single ”Play/Pause” item which does both. I also think the interface should be consistent across these two applications. Rhythmbox-client even supports the same parameter as totem for this (–play-pause), so I created a patch for rhythmbox.desktop based on totem.desktop, which should accomplish what I’m after.