Thank you! Yep, this game was inspiried by Laserwave (the game you were talking about). One way I thought of making patterns more interesting would be to make certain pattern parts give buffs (e.g., two kicks followed by a snare would double chain length).
I did not use an asset though, since the clips were typically 4 measures long, I just looped them and reset the current time marker every time. Of course, you would have to input the bpm so it would know when the eighth notes were.
I'll definitely try your game out later!