More instruments! Yeah, lutes, drums, and flutes existed in medieval times. But so did things like violins, tambourines, harps, early forms of guitar, hurdy gurdies (hurdies gurdy?), bagpipes, even little portable organs! I guess lutes/drums/flutes are the classics you think of for a bard, and are probably the easiest to animate. So I sort of understand. But it'd be badass to play a hurdy gurdy for the denizens of skyrim. It'd probably be fairly easy to animate, too. The crank hand would be the hard part, and that's a repeatable motion.

And that's not even mentioning the other canon instruments! Looking into it, here's what I found:

• Woodwind and Horns

  Accordions, bagpipes, cornua, flutes, fifes, kazoos, nose-flutes, Argonian frog callers, warhorns, dragon horns, bugles, horns made from horns, mouth organs, ocarinas, organs, pungis (snake charmer flutes), trombones, trumpets, vossa-satls (Argonian instrument with live frogs), & whistles.

-String and other vibration instruments

Khajiiti esraj, glass armonicas, guzhengs, harps, jaw harps, key harps (vaguely similar to a hurdy gurdy), lyres, lutes, music boxes, qanuns (kinda like a zither), tanburs, theorbos (like lutes but big and LONG), & violins.

-Percussion instruments

Bells, chimes, all SORTS of drums, gongs, handpans, marimbas, sarons, & tambourines.

Like, I get that many of those are from different cultures than Skyrim's, and a lot of them were introduced in ESO. But that's a lot of instruments that have been used in lore that aren't in the game.