Added basic music playback + tui

pkg/utils.go

@@ -0,0 +1,17 @@
+package gomus
+
+import "log"
+
+func mapList[T any, R any](l []T, f func(T) R) []R {
+	var c []R = []R{}
+	for _, item := range l {
+		c = append(c, f(item))
+	}
+	return c
+}
+
+func check(err error) {
+	if err != nil {
+		log.Fatal(err)
+	}
+}