Green: beginner bard, very novice question

[SirUlrichVonL]

I think I'm not quite understanding a basic concept. So, from all the bards guides I've read I should be able to play multiple songs at once in order to "twist". However, whenever I click the next song it says "your song ends" and the affects seem to go away. For example, when I go from Chant of Battle to Chords of Dissonance it stops saying "you feel your pulse quicken" and I only see "a blank winces". It would appear as only one song is working at a time. Are all of the songs playing and I'm only getting combat messages for one of them or does playing one song end the others? This is a reallyyyyyyyyyy basic concept and I'm embarrassingly not understanding it. Thank you for any help and clarity on this really simple concept.