I've listened to a variety of music during vaped DMT trips, and I'll try to give some impression of the impact on the trip.
1. First trip I can remember was with pat metheny, the song spirit of the air was playing during the peak and come down. It didn't have a very big impact on the trip, I don't remember hearing it during the peak. When I was reintegrating into my body I was crying because that was my first break through, and I noticed it was in very beautiful harmony with the guitar's melody.
[youtube]
2. I remember during my first few trips one time I listened to this psytrance: [youtube]
Although I don't particularly like this kind of music anymore, it is fun. This is how I saw it during the trip, it was a short trip so I can't remember much.
3. More recently I did a couple of trips, and I had a very strong trip where I listened to bjork, the songs cosmogony, but especially dark matter (they follow each other on the album). It was such a crazy trip, it was so intense that everything melted together, but this music was more than present present throughout. I was communicating with a female entity originating in the music. The variety of images and feelings and concepts that bjork manages to condense into her singing and music just boggles the mind.
[youtube]
Other music I think would be beautiful during DMT trips:
Anything by flying lotus, check the album until the quiet comes.
Lusine [youtube]
I listened to shin by lusine during a trip, it was not such a nice experience, but that may be coincidence.
Thundercat [youtube]