Night in the Woods

Fuck this achievement, and fuck Demontower. Anyway, definitely mute the game for PHG (the first two songs I was able to do fine with the audio on, even though the notes don't always match the music). I was having a particularly hard time getting the timing right for the section of PHG just before the insane solo, where you're mashing A/B/X a bunch in a row...it might be useful to do a few throwaway practice runs where you don't worry about nailing the song, just concentrate on figuring out the timing for the mash section and maybe practice the solo some. Once I finally managed to get most of the mashing part (I think I might have had one or two mistakes there), can confirm everyone else's advice that you can safely skip all of the X presses during the solo and as long as you get just about all of the A, Y, and B notes correct you will get the "pretty good!" rating. It does take a lot of practice though. Try to concentrate on watching the buttons as they approach the bottom and ignore the "strings" as best you can, because the near-constant shaking as you skip Xs can be very distracting and make you think you're messing up the other notes when you actually aren't.

And personally I found it most helpful to have my left thumb on the Y button and use my right thumb for A, B, and X. Some have said to use one thumb for X & Y and one for A & B, but my coordination is not good enough to be moving two fingers back and forth...keeping one thumb in place with just a single button to control was the most helpful for me.

I recommend muting the sound and just doing it by visual. The song doesn't seem to hit the notes with the button presses, so it's distracting.