Since this appears to be a specific community mod, you are most likely to find the .zip file on specialized modding platforms:
: Many modders release their soundtracks via YouTube video descriptions. Searching for "Android Mod2 OST" or "Android Mod2 long piece" may lead you to a video with a MediaFire or Google Drive download link. Download OST @Android Mod2 zip
: This is the primary hub for Android-related game mods. You can search the GameBanana Search Engine for "Android Mod2" to see if the soundtrack has been uploaded separately. Since this appears to be a specific community