Or, really, maybe there should be a generally accepted rule that anybody who owns a genuine Spinal Tap die gets to use it on any Song roll.
Great ideas!!
There could be a fan-made PDF for April's Fool day, that compiles ideas from the community to use the Spinal Tap die as an in-game mechanic.
However this happened, I feel really bad for the guy/gal (intern?) whose responsibility it was to inspect the proofs.