Vintage MR.CHRISTMAS lighted,musical holiday carousel retailer 21 songs. 1992 working

Product Name: Vintage MR.CHRISTMAS lighted,musical holiday carousel retailer 21 songs. 1992 working
Set includes 6 animated ride horses with blinking lights. Has the organ that has blinking lights ,on off switch and Volume dial. This organ will play 21 of the most popular retailer Christmas tunes. I must say it is made well because the music Sound has good quality tone,and not annoying.. you can even raise and Lower volume. It is in great condition and everything works as it should. There are on the eve over the horses one clear bulb each. Two are out. Don't know how to replace them?.