MEDIA_TYPE_KEY
msg.AddString(MEDIA_TYPE_KEY, MEDIA_TYPE_SOUNDS);
msg.AddString(MEDIA_TYPE_KEY, MEDIA_TYPE_SOUNDS);
|| message->FindString(MEDIA_TYPE_KEY, &type) != B_OK
|| message->FindString(MEDIA_TYPE_KEY, &type) != B_OK) {
msg.AddString(MEDIA_TYPE_KEY, MEDIA_TYPE_SOUNDS);