updateById: expects record but I want to update one field

Hello, I followed a tutorial and now I can use GraphQL. it was pretty straightforward but I'm having troubles updating a record in my db. Here is my query: I just want to update the album on the recordId mentioned. I don't get it. can somebody help me?

what if I want to update 2 fields (say track number and album) instead of one field?

`mutation {
songUpdateById(_id: "5ffaef4fdcf92f89fd19a816",
record: {
album: "Ready 2 Go"
}
) {
_id,
title,
artist,
album

}
}`