.go

package main

import (
	"os"
	"time"

	"github.com/faiface/beep"
	"github.com/faiface/beep/speaker"
	"github.com/faiface/beep/wav"
)

func main() {
	speaker.Init(44100, time.Second/30)

	f, _ := os.Open("mozart.wav")
	s, format, _ := wav.Decode(f)
	buf := beep.NewBuffer(format)
	buf.Append(s)
	s.Close()

	speaker.Play(beep.Loop(-1, buf.Streamer(
		5*time.Minute+37*time.Second+666*time.Millisecond,
		5*time.Minute+41*time.Second+148*time.Millisecond,
	)))

	select {}
}