3 audio song transition help

Audacity 2.1.0
Windows 7
EXE file

Hey all I am new to Audacity and loving it just need a little help to get my needed effect. I have 2 sound files and a song that I want to put in and I want the sound to transition to the other then transition to the song and right now they all play at the time. Can someone help?

  1. See the reply to your similar question: https://forum.audacityteam.org/t/making-audio-files-not-play-auto/39047/1

  2. See: http://manual.audacityteam.org/o/man/crossfade_tracks.html