Here's my time decayed BRIS pace on those two for 2F, 4F, 6F and LT
R4:
Musical America 205 218 204 114
R8
Q F Seventy Five 190 191 201 177

So, I'd say Musical America is very likely to fade.
Q F Seventy Five has a much better chance of closing the deal. Of course, on the turf it is tougher for the speed to hold. But my pace line is the 4th line and if you don't mind it being slightly over a year old, it suggests that this one looks good in this field. My form factors all look good on this one and the BRIS Prime Power is third highest in the field. I would include him on a horizontal.

R4 Musical America, upside, looks positionally to be alone out there, downside, terrible trainer and rider, but that could really boost your price.
The 2 has shown early speed before, under today's jock, and could be in the mix, but has inferior early pace figs.

8 QF75 looks to be verly lonely out there and should be able to hold on.

In R8, the ML fave looks to be likely closest early to QF75, but I don't think can go on late. I see that as a positive for QF75, but he will still have to hold off the late rush from 6, 7, 3, 9, 8.

TFUS agrees with you on the 8th race

Okay, so the 4 is scratched in R8. That will relieve some pressure on QF75.

There is the matter of Pletcher's #5 having debuted on turf followed by two all-weather trips and now returning to turf off his three foreign races. A bit of an unknown factor.

Musical America didn't even have the lead at any call and faded to 4th.

#1 stayed closer than usual and closed the deal in R8.

You guys hit the nail on the head! Neither horse was able be a factor in the lane. I am surprised that Musical America didnt fight for the lead. Not that I expected a win I just thought he would make a better account of himself in a soft race.

The foreign horse in R8 went out 2nd early and was taken up.

Welcome to Belmont.
Somedays, it's like a big surprize party! lol.