I'll admit to not knowing about the "song effect duration" being applied to debuffs. I never tested it and don't really use that gear in my debuff set anyway. Seems strange to me, but you seem to know what you're talking about, so I'll take you at your word. I also know that skill does not affect potency. I was not thinking properly when I read it and thought you were referring to resist rates. Since Daurdabla has no +1/2/3 to any songs, it does nothing to actual potency and therefore really shouldn't be used except for the 3rd song buff or if the skill is needed to land a debuff and you don't have a Gjallarhorn. I really just misread what you said and I apologize.
As for me saying "finale and finale", that's what I get for not proofreading. I meant lullaby and finale. I still keep nursemaid's harp on me for occasional use. I use sorrowful harp for threnody still, and I used military harp for finale up until better options were pretty recently added. I always preferred maximum duration to the small chance of having a higher resist rate by not using a wind instrument.
I was assuming SE would gimp massacre elegy somewhat. If they keep it at 100%, then Gjallarorn-only makes sense. In that case, they could make an in-between tier elegy that could be quested for non-Gjallarhorn bards. Just an idea.
I still disagree with 40 skill being worthless compared to simply using a wind instrument. Without looking it up right now, 1 skill is supposed to be worth 0.5 MACC or 0.5 CHR or something. You honestly think that using a level 1 flute compensates for this simply because it is a wind instrument? I can't believe that could possibly be true. Having a +1/2/3 to the song effect only affects potency and duration as you said, not resist rate. However, I assume you have a debuff set with a ton of MACC and CHR, so why should landing songs using a stringed instrument be a problem? Even if you use string gear to maximize your aoe range, this has a significant impact on lowering resist rates as well. Your arguments seem to suggest that we are debuffing naked except for an instrument.
I'm not really sure how my post was "riddled with bits of wrong info and silly logic" since you only called me out on the one thing. We obviously are both coming from the same place here. I'm not trying to criticize, but I'mn stating factual information just as you are. We should probably just meet for a beer and discuss the finer points of bardery.