You want to give us less buttons that we have to use more.
Currently:
1) Courage
2) Excellence
3) Spellsong Trance (currently AoE, will be changed with this though...)
4) Sustaining Song (currently AoE, will also be changed)
5) Spellsong Vigor (currently single target, however you don't need to put it on people like the barbarian, so typically 3-4 peeps in a raid, 2-3 in party, and that's ONLY if you have T5 SS)
7-8 songs in a raid | 6-7 songs in a party (Typically as Spellsinger Bard) | 4 songs as warchanter
Proposed:
1) Inspiration (for however many people in group)
12 songs in a raid | 6 songs in a party (both SS and WC)
To me, that looks pretty bad. You may be giving us less DIFFERENT buttons to hit, however we will be using them more than we currently do.