That's not a Sing Along playfield. There are loads of differences. It might work in a SA but it won't be as original. There is no Holes Score Special When Lit, no on Red / Yellow bumpers, different writing for the target, the small areas above/between the kick out holes are brick pattern, plain on SA. No Sing Along above the Gottlieb logo. It is an Italian AAB playfield. Might be the same as Melody, not Sing Along.