This is obviously futile at this point, as the community team clearly never passes on thoughtful constructive feedback. There have been several Bard threads by lots of thoughtful folk over 6.0x, with a lot of rough agreement/overlap on a bunch of issues. Yet all we get is a minor death QoL and some irritating changes nobody asked for. (Bard is hardly alone in this, of course)
But this is where we're told to post feedback, so here we are.
As background, I've done a lot of guide writing for Bard this expac, and follow conversations about it in the Balance, the reddit discord, other discords, reddit itself, the forums here, etc. I'm not trying to speak for myself, so much as reflect broad sentiments I've seen around and about.
On the 6.1 changes
Battle Voice - strictly good change, only matters if you die in a specific 6-second window but that does happen so hey why not.
Soul Gauge - The little line addition is nice. The sound queue at 80 gauge is... tone-deaf? Nobody wanted this.
The key issue is that pressing Apex at 80 gauge is incorrect under normal circumstances. So the sound queue is mostly an irritant that calls Bards' attention to a gauge they don't care about yet.
In those cases where you do want to Apex at 80, it should be welcome, but those are the exception and not the norm. I think most Bards would prefer not to have this sound effect going off.
Minuet / Pitch Perfect - I only recall a few people request this on the OF, and most of them were not Bards. It's not necessary. Bard does not have button bloat issues.
Most Bards will have their three songs arranged in a group on the hotbar, and find it pointless at best and annoying at worst to have one of them turn into PP with its distracting glow. They aren't going to want PP in that area of their bar.
Nor do people generally want WM separated from the other songs, to go where you'd want PP. It's what people will end up doing eventually I guess, and some are fine with it, but I'd say about 3 in 4 Bards would like to see this split reverted.
On the biggest 6.0 issues left unaddressed
Roughly in order of how much I see them complained about -
1. Shadowbite - Barrage still does not proc Shadowbite, and that's still baffling and very irritating.
Also, Shadowbite's small radius is still a headache for Bards everywhere. Pressing the button is often incorrect, because it will hit far fewer enemies than Ladonsbite will. Cycling through targets reactively on the fly to try to make your Shadowbite usable is more irritating than multi-DoT'ing ever was.
Increase the radius of this skill, or rework it, or something. It does not make any sense as-is.
2. Song inflexibility - Bard's inability to work with odd-minute bursts has been a source of frustration for many players this savage tier. Most jobs can simply hold their 2-minute cooldowns, but Bard's songs don't work in a way that allows for this.
The easiest "fix" to this would be to make Mage's Ballad closer in power level to Wanderer's Minuet. Balance and tuning and etc. though.
Alternatively, you could instead give Mage's and Army's shorter cooldowns (ironically, 80 seconds would make the most sense). This would allow Bards to alternate them as needed to delay Wanderer's. It would also aid in death recovery, make dungeons feel better and so on.
Or some other creative solution. It's a pretty big feels bad in a number of fights already.
3. Mage's Ballad vs. Army's Paeon - Four months in, and unsurprisingly, still nobody likes Army's Paeon. In the pre-EW kit, it made some sense to have a do-nothing because the job was so stressful the rest of the time.
But now that Mage's is easy and comfy, and even Minuet isn't bad at all after the burst, Army's Paeon just does not belong. In a sense, Mage's fills the role that Army's used to, and does it far better.
Ultimately, making Mage's better than Army's would only affect nine seconds out of every two minutes, so I've seen calls for that kind of die down as people realize that.
Nonetheless, Army's Paeon sorely needs some sort of added gameplay element - anything at all - so that it doesn't feel like you're playing a level 6 class for over a third of your rotation.