Glide (To managment package) I install with Visual Studio Code (VS code Glide), then Open terminal on VS Code >Glide:Install.
go build
go run *.go
All Songs http://localhost:8080/songs
Get by Artist add "Colornoise" http://localhost:8080/songs/artist/Colornoise
Get by Songs add "Gala" http://localhost:8080/songs/song/Gala
Get by Genres add "Rock" http://localhost:8080/songs/genre/Rock
Important: The server listens on port:8080
If you need to change, open main.go and go to http.ListenAndServe(":8080", mux). Put your port.