This in particular would be lots of fun, whether it was very effective or not. HOWEVER, Bards suffer from this thing where noone lets them use crowd control, because everyone has charged in and blown everything to hell before the bard's songs have gone off. But in that very same burst of DPS... all the breakables would already be down. But it would be a quite a nice solo tactic, along with the fascinates and enthralls if available, and very in keeping with the PrE. I'd love to see something really interesting like this.
Swashbuckler should also be getting free shield bashes, which should do slashing not blunt - a buckler was a reasonably effective offensive slashing weapon (the rim was frequently sharpened and used to strike with) to go with the piercing rapier that the young swashbucklers would wear around town.