If you read the comments, it wasn't actually keyboards but a recording playback of the synth parts set at the wrong sample rate. But it actually seems like the guitars is out of tune and not the synths. A comment said a guitar tech gave the wrong out of tune guitar to him.
08-21-2017 02:58 PM
The synths are out of tune compared to the studio recording
08-21-2017 02:59 PM
The tempo also doesn't sound noticeably different. I would guess it's a midi module with the wrong sample rate.