BUR #18273 has been approved by @nonamethanks.
remove alias holding_guitar -> holding_instrument
remove alias holding_violin -> holding_instrument
I'm not sure why holding_instrument in particular has been denied more granular subtags, but it sticks out like a sore thumb amongst others like it. holding_weapon, holding_food, and holding_clothes all have more specific subtags under them, but holding_instrument instead has its two biggest simply aliased to it. Lacking these tags makes it impossible to search for some more unconventional instruments being held - at least 95% of the holding_instrument keyboard_(instrument) search is group shots of bands featuring, say, a guitar being held and a keyboard not being held. And God help you if you want to find posts with someone holding a drum...
I'd like to remove these aliases and let the individual instrument holding tags grow rather than nuking them on sight.