If I want my game to play through a set of BGM's how does one go about impleminting that? There is still soo much about Godot that I don't know. I've tried creating a node which has a set of it but it I don't have any idea on making it work.

Is there another tutorial on the matter I can look up as a reference? At the moment I have found no Godot 4.1 tutorials for this.

Project folder:
https://workupload.com/file/grkGsvmatYm

I went back after seeing some tutorials. The tutorials sadly are outdated and not for Godot 4.1

If I understand you correctly you want to play background music (multiple files) one after another, is that correct? This can be accomplished with a number of ways.
Here's one way:

extends Node


var audioPlayers : Array     # list of our audio players
var current_player : int = 0 # keep track of which player is in use

func _ready():
	if _find_audio_players():
		if _connect_audio_players_to_finished():
			play_audio(current_player)

func _find_audio_players() -> bool:
	var found_at_least_one := 0
	for c in get_children():
		if c is AudioStreamPlayer:
			audioPlayers.push_back(c)
			found_at_least_one += 1
	return found_at_least_one > 0

# connect each player's finished signal to the finished func 
func _connect_audio_players_to_finished() -> bool:
	var all_good := true
	for ap in audioPlayers:
		if ap is AudioStreamPlayer:
			all_good = ap.finished.connect(_song_finished) == OK
		if not all_good:
			return false
	return all_good

# player next one is finished
func _song_finished():
	current_player += 1
	if current_player >= audioPlayers.size():
		current_player = 0
	play_audio(current_player)


func play_audio(player : int):
	var c = audioPlayers[player]
	if c is AudioStreamPlayer:
		c.play()

    Erich_L Thank you, that method worked for me.
    Is there any cons to using this method? Will it work well when you have many BGMs?

        RPGguy This will work so long as you keep the players as children of that node with script- even after adding more audio players beneath it. If you have more than 20 though I would worry about it causing the game to hang for quite awhile when opening. Hanging could be dealt with by loading audio i + 2 after audio i has finished playing then only starting the scene with audio 0 and 1. That would require more code though.

        Hopefully if you're new that code isn't too hard to make sense of.