@B1GM4NT1NGS I have the same problem too, but on RaspberryPi 3b+. The only thing which I found, how possible fix stuttering is: in sound options choose a different output source, for example analog headphones, wait a few seconds, and after choose back HDMI/displayport. Music will plays correctly, but until restarting, or starting a game and exit from it.
I'm sure that problem in this version of recalbox. Not the hardware - sdcard, rpi, gamepad, cable etc. Because when i installed previous version I haven't problem with music in menu with the same setup.
I hope that developers will pay attention on this issue.

@davidb2111
Hello!
Sorry for late reply.
Its very strange but yes, it was 720p, when I changed it to 1080p - stutters disappeared!
Thanks for advice.
But I don't understand how its related - sound and resolution.

@davidb2111
Hello!
Sorry for late reply.
Its very strange but yes, it was 720p, when I changed it to 1080p - stutters disappeared!
Thanks for advice.
But I don't understand how its related - sound and resolution.

@B1GM4NT1NGS I have the same problem too, but on RaspberryPi 3b+. The only thing which I found, how possible fix stuttering is: in sound options choose a different output source, for example analog headphones, wait a few seconds, and after choose back HDMI/displayport. Music will plays correctly, but until restarting, or starting a game and exit from it.
I'm sure that problem in this version of recalbox. Not the hardware - sdcard, rpi, gamepad, cable etc. Because when i installed previous version I haven't problem with music in menu with the same setup.
I hope that developers will pay attention on this issue.

There is have a guide how to fix this bug:

https://wiki.recalbox.com/en/tutorials/audio/fix-emulationstation-sound-issues

I tried make this way, and used MobaXterm. But after that music in Emulation station doesn't plays at all.
Perhaps it must work in older versions of Recalbox?

I installed the new version of Recalbox Electron 8.1.1 on my Raspberry Pi 3b+.
And in main menu music freezes, I try start a random game - there isn't any problems with music or sound. After that I exit to main menu (Emulation Station) and again music freezes.
I found a way how to fix it - in sound options need to choose a different output source - for example analog headphones, wait a few seconds, and after again need to choose the Hdmi/displayport. Music in menu starts playing correctly but until restarting the Raspberry or starting game and exit from it.
I'm shure that problem not in the Raspberry Pi or SDcard. Because I try this version it on another new SDcard. The situation is same. Moreover I have the SDcard with older version of Recalbox Dragonblaze and there isn't any problems with music in main menu.
Please give me any Ideas where is the problem can be.

A two days ago, I installed the new version of Recalbox Electron 8.1.1 on my Raspberry Pi 3b+.
And in main menu music freezes, I try start a random game - there isn't any problems with music or sound. After that I exit to main menu (Emulation Station) and again music freezes.
I found a way how to fix it - in sound options need to choose a different output source - for example analog headphones, wait a few seconds, and after again need to choose the Hdmi/displayport. Music in menu starts playing correctly but until restarting the Raspberry or starting game and exit from it.
I'm shure that problem not in the Raspberry Pi or SDcard. Because I try this version it on another new SDcard. The situation is same. Moreover I have the SDcard with older version of Recalbox Dragonblaze and there isn't any problems with music in main menu.
Please give me any Ideas where is the problem can be