[How to do instruction] 128x64 OLED with Song Status and Spectrum Display on Raspberry Pi

[officialsm]

installed Moode 7.3, still all ok but screen is black, seems to be off:

pi@MOODE:~ $ sudo systemctl status mpd_oled
● mpd_oled.service - MPD OLED Display
Loaded: loaded (/etc/systemd/system/mpd_oled.service; enabled; vendo
Active: active (running) since Mon 2021-06-28 14:32:01 CEST; 22s ago
Main PID: 1997 (mpd_oled)
Tasks: 2 (limit: 4915)
CGroup: /system.slice/mpd_oled.service
└─1997 /usr/bin/mpd_oled -o 6 -b 10 -g 1 -f 20 -c alsa,plugh

Jun 28 14:32:00 MOODE systemd[1]: Starting MPD OLED Display...
Jun 28 14:32:01 MOODE systemd[1]: Started MPD OLED Display.