object "#1: Playlist" {
name = "Beatles ballades"
songs = "{#yesterday, #42}"
}
object "#yesterday: Song" as yesterday {
name = "Yesterday"
playLength = 123
}
object "#42: Song" as letitbe {
name = "Let it Be"
playLength = 230
}
note right: object of type Song
playlist1 --> yesterday : songs
playlist1 --> letitbe : songs |