I think the real problem is frequency.
We can all imagine really impressive and epic moments that involve breaking out into a haunting song or delivering an inspiring speech. But when your character keeps doing it, over and over again, you run out of neat ideas or those epic moments lose their impact and just because repetitive... or downright silly.
The easiest solution is just not doing it. Cast like a normal person most of the time, and only break out the big songs or inspirational speeches during the boss battles. That keeps you thematic enough that you still feel like a bard when it really matters, without watering the impact of your performances down with constant repetition.
But it should be, or the game shouldn't have pretensions of allowing you to play characters with such qualities that are different from your own - no mental stats, just physical stats and maybe some sort of magical stats like 'mana' and RQ's "POWer."If I want to RP the greatest swordsman in the world, I don't actually have to be even a passable swordsman in real life. I don't even actually have to know anything about fencing, HEMA, or kendo - much less actually be able to perform them. The physical qualities of the character are completely distinct from my own physical qualities....
The same is not true of social or mental qualities.
Isn't Dio a gnome wizard (in leather pants)?Don't ever suggest that Dio Rockmaker, dwarven bard and creator of Metal music is silly.
Understanding the class is less a question of being attuned to the culture that produced the original bard concept back in the day, and more a question of being attuned to the culture that inspired the class back in the mid-late twentieth century. Was this another Gary invention? What was he trying to represent here?Other than the fact that our cultural sensitivities are not attuned to the culture that produced the idea of the bard, and that we are ourselves no longer a choral culture that sings communally, I think that this is the real issue.
I'll play!Isn't Dio a gnome wizard (in leather pants)?
edit: this thread makes me want to play a succession of bad-pun bards based on real musicians. Say like "Lana of Rey", the "gangsta Galadriel".
edit2: or the half-orc barbarian-bard, GWAR. Or the German Warforged bard, Kraftwerk. I could do this all day!

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.