Since this is the first time on these forums that I'll need to request for help, I hope I've posted this on the right place. I've already tried searching for an answer regarding this issue, but sadly, I was unable to find anything... I hope somebody can help me!

Basically, here's what I'm trying to do. I made two separate audio files (OGG files to be more accurate), and I want to use both of them in one boss theme. One of the two is supposed to be the intro, while the other audo file has to loop once the intro is over. Both of the files have already been tested on RMXP, and work perfectly.
The problem however is that an event like this will (I presume) need to be executed within the Boss Troop's Battle Event. I made an event which I thought would work, but I ran into a big problem - It simpily doesn't start. Here's the event I made:



In case you are wondering, the large waiting times at the end together are exactly the same amount of time as the first audio file. The idea is that the BGM is changed immediately upon entering the battle, and after 2880 frames, the music is changed, allowing the second audio file to loop for the rest of the battle.
Yet even the first step is something the game simpily does not allow. I've tried every single condition, yet every time it's supposed to trigger, the game instantly freezes with the sole exception of the music (Which refuses to change even after waiting for five minutes). Naturally I've left the span on "Battle", as this should cause it to last for the entire battle, right?

Anyhow, if anybody has a solution to my problem, please leave a reply with your suggestion or information. If you require any more information about this issue, don't hesitate to leave a reply as well, as I'll check back to this topic regulary.

"Change Battle BGM" only changes the name of the file that will be used when battle starts. It doesn't play the file.
Essentially, it means, "Next time a battle starts, use this BGM"
Since your battle has already started, it wouldn't take effect until the next battle.

I would set the first BGM in the event that starts the battle before the battle starts:


Change Battle BGM: 'Music_Kirby...'
Battle Processing: 'your troop name'


Then in the Troop tab:

Condition: Turn, 0 0
Span: Battle (Only run once during battle)

Wait: 999
Wait: 999
Wait: 882
Play BGM: 'OggTest',100,100


Be Well

Thanks for the help, but unfortunately this too doesn't seem to work. The first audio plays perfectly now, but rest of the fight completely freezes and the music still not changing to the second audio file.

Does anybody else have an idea which may work, or is something like this impossible in RMXP?

Then you have something else going on. I tested it and it works fine.

If you want to upload your project somewhere, I'll take a look at it.

Be Well

You could just use an MP3 editor, like Audicity to just combine the two files. Might be easier.