This is such a cool concept and good music to go with it too!
I feel like there needs to be more visual interest and sound cues to really make the gameplay satisfying. Like putting an abrupt record player sound whenever you spun the record to make the gameplay integrate with the music, the waves of sound could pulse with the rhythm of the song so there'll be more of a visual indicator, and when you get the note correct it could shine the disk!
The controls are where I was struggling, as it relied on the single mouse to turn the two disks. Maybe give a hint to the color of the next note before shotting it so the player can plan their placement so it feels less reactionary, or somehow change it to keyboard controls as I've seen someone else suggest, I also think this game might work the best on controller where you can use the sticks to move both of the records at the same time. A part of me would be curious to see if that one turntable controller from Beatmania could work with this game, just double it.
There's a lot of cool potential with this game!