krpano/plugin/bgmusic/xml/plugin.xml

<krpano>
<events name="musicevents"
    onnewpano="indexoftxt(result, get(scene[get(xml.scene)].bgmusic),sound); if(result GE 0,tween(sound[bgsnd].volume, 0.5)); set(music_bgmusic,get(scene[get(xml.scene)].bgmusic)); if(music_bgmusic,js(openMusicVoiceBtn());playsound(bgm,get(scene[get(xml.scene)].bgmusic),1,tween(sound[bgsnd].volume, 1)););"
    keep="true"/>
 </krpano>