All intent filters for music
===

To get trak information from Android music apps I use those IntentFilter to start the receiver:

    IntentFilter iF = new IntentFilter();
    iF.addAction("com.android.music.metachanged");
    iF.addAction("com.android.music.playstatechanged");
    iF.addAction("com.android.music.playbackcomplete");
    iF.addAction("com.android.music.queuechanged");
    iF.addAction("com.android.music.metachanged");
    iF.addAction("com.miui.player.metachanged");
    iF.addAction("com.htc.music.metachanged");
    iF.addAction("com.nullsoft.winamp.metachanged");
    iF.addAction("com.sec.android.app.music.metachanged");
    iF.addAction("com.real.IMP.metachanged");

You know others?