Getting Spotify audio input into LedFX

[1kohm]

Hi,

I'm using this image as my goal is to stream music from Spotify to LedFX and create sound reactive WLED effect.
My problem is that I don't know where should I configure my Spotify account, is it somewhere in Snapserver container?

I've tried several docker-compose using different images, with no luck so far.
My current configuration uses docker-compose.yml from this project examples.
https://github.com/ShiromMakkad/LedFxDocker/blob/master/examples/snapcast.yml

version: '3'

services:
snapserver:
image: ivdata/snapserver
container_name: snapserver
ports:
- 1704:1704
- 1705:1705
volumes:
- ./snapcast:/tmp/snapcast
ledfx:
image: shirom/ledfx
container_name: ledfx
environment:
- HOST=snapserver
ports:
- 8888:8888
volumes:
- ./ledfx-config:/root/.ledfx

Second issue I have is that ledfx container is complaining about ALSA and reporting following error in logs:

ALSA lib seq_hw.c:466:(snd_seq_hw_open) open /dev/snd/seq failed: No such file or directory
[ERROR ] ledfx.integrations.midi : Unable to enumerate midi devices: MidiInAlsa::initialize: error creating ALSA sequencer client object.
ALSA lib seq_hw.c:466:(snd_seq_hw_open) open /dev/snd/seq failed: No such file or directory

Can someone explain me what I'm missing or having incorrectly configured?

Thanks