Well, these "plumed cap" costumes certainly remind me of my old marching band days. I'd love to see sax/drums (possibly clarinet) armor front accessories. Sadly trumpets/flutes etc. wouldn't look quite right...Oh! A wrap-around Sousaphone (armor back I suppose? then you could have that AND DRUMS ZOMG)....that would rock. Speaking of rock, and instruments, why not guitars as well? Acoustic and Electric! (I believe this has been suggested/thought of before...darn there was an awesome sk rock band pic but I can't find it nor recall who created it).

Yes, I would totally walk through the clockworks fighting with a Sousaphone on. Totally. Hey, we take baby monster pockets in there, that's a lot worse!

Also banjos. And various worldwide instruments (I am rather American, but I am aware that there are very interesting, "lesser known" sound-makers out there...the shamisen makes a wonderful sound). And one of those one-man band ensembles (that has the drum and horns and everything).

Sound effects? probs not. if so, toggle on off please...that could get annoying very quickly.

Everybody get these, go to haven, and walk around the fountain in as orderly a fashion as possible! Let's have a celebratory parade!

Do spiral knights use these instruments in their culture? Hmm...does that matter? harhar.

Also, grand harp and piano/organ furniture for GH please. A jukebox would be nice, but that could be so much more elaborate with song theme choosing, and needs its own post...later.

While I'm at it, why not some sound-themed weapons? A rain stick summons a shocking storm! A horn blows air really hard and stuns with sound! (This would be a gun, probably). Smash enemies to bits with a triglav-style stage-slamming guitar... (imo, irl this is horrible, but in-game it would be hilarious).