Doug's Musical Ability, in GURPS

[Bob Schroeck]

Looks interesting. You're right that Mass Conservation and Retains Shape may not necessarily be proper for inclusion, as some of Doug's forms may break those limitations (the one that turns him into a giant living balloon definitely does).

As does "Eye of the Tiger", "Larger than Life" byt the Backstreet Boys, and many of his other "physical transformation" songs.

Since Doug has indicated that using power songs can be tiring, two levels of Costs Fatigue would probably be appropriate (two fatigue for the first minute of use, one fatigue for each additional minute. Even his longest songs can be played without causing him to drop from low fatigue).

It is, but not on that scale. To use the V&V terms and units: Doug (currently) has 100 power points (compared to 40 for an average human); a basic energy blast costs 2 PP, his usual lightning attack costs 3 PP, things like flight and invisibility usually cost 1 PP per hour, and it's only really big effects that cost him more than 5 PP at a shot. One level of Costs Fatigue would be overstating the case for most effects, and two is overkill. If you must, one level is closer to the original than two would be.

After that, you simply have to determine the cost of Doug's most expensive 'template' and add it to the base cost of Morph for the final cost.

, ah, that's the rub. You never know what a new song will let him do, and that might change your yardstick. But some hard limits built into V&V might help. His maximum Growth limit is 7 times his height (the balloon incident was exempted from this by the GM because he was effectively paralyzed during it and couldn't use it). Resurrection is fairly expensive (as a discrete power/advantage) IIRC, and might make for a good benchmark.

On the other hand . . . he may also get by with a -30% accessibility for “Only while trigger song is playing.” But, that may be as low as -10%, as it’s within his control.

That seems okay to me.

And DW shows that he really doesn’t have to do anything special other than listen to music . . . and not be stupid about it.

So... IQ roll at -5 required?

*For certain values of reasonable, anyway.

Hexe will tell you that Doug is never reasonable.
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.