It starts with a smooth guitar solo, (kind of sounds like an electric guitar), then a drumming beat starts and a girl humming. There was only roughly 20 seconds of the song, so that was all i heard !! Sorry, it is a terrible description, but i hope it helps

The humming is kind of like this: “Ahhhh ahhh ahhhhh, ah ah ah ahh ah ahhhhhhhahh) (As the humming is “Ahhh’s !!)
Im sure that really doesn’t help, but thats how the humming starts!