Trouble adding uncredited credits to The Black Hole (1979)

I tried to add the two uncredited credits to The Black Hole  in contribution #240214-215231-107000 but IMDb rejected them.

The two uncredited musicians are:

Louise Di Tullio musician: flute

Malcolm McNab musician: trumpet

Here are the photos and reliable links of where I've found them.

http://www.louiseditullio.com/Flute-Soundtracks.html

https://malcolmmcnab.com/