public void setMusicVolume(final float musicVolume) {
        this.musicVolume = normalizeVolume(musicVolume);
        if (currentTheme != null) {
            currentTheme.setVolume(musicVolume);
        }
    }
public void setMusicVolume ( final float musicVolume ) { this . musicVolume = normalizeVolume ( musicVolume ) ; if ( currentTheme != null ) { currentTheme . setVolume ( musicVolume ) ; } }
@param musicVolume will become current volume of music. If a registered theme is currently playing, it's volume
will be adjusted.