Maybe you could do an internet search for the model of phone you have and how to create them yourself. That way you can determine the length and using your own music. There is plenty of free scoftware out there.
I would have said Myxer b/c that is what I have used in the past but judging from your post they put a limit on it now.
I would have said Myxer b/c that is what I have used in the past but judging from your post they put a limit on it now.