HOW DO I PUT AN ACCAPELLA ON A BEAT" match it up like a dj

Question

ok when i normally want to quickly put an accapella on a "instrumental" as a dj i simply load the accapella into my denon or cd player and through the "pitch" on the cd player, match the accapella on the beat less then 30 seconds.
Now when I would like do that same command in "logic" I am still not aware of a plugin that can do this without me manually burning the accapella on a cd then mixing it live on my beat through an external cd player source.
so the question is:
how do i put an accapella on a "beat" within logic without cutting the accapella so that it fits on piece by piece.
WHAT IS THE FASTEST WAY:

Answer 1

There are probably third party plug-ins that let you do this quickly like your CD-Js. However, the way to do this in Logic is slower.
First, you need to know the BPM of the acappella, and the easiest way to figure this out is to import the full track it's from into a blank Logic project and work with the BPM of the Logic project until you have it matched with the audio track. The way I do this is to cut the track right on the first kick and then drag that audio region so it lands exactly on the first beat of the bar. Then I adjust the bpm (located in the transport window) until the track stays lined up all the way to the end. It's brainless, you just look at the visuals of the beat and make sure they stay on with the grid in Logic. Once you got it lined up, you know the BPM of the track.
(If you're doing a remix for someone, it's nice to get the BPM from the artist cuz it saves you this first step)
Then, go back to the project you're trying to use the acappella with. Import the acappella into the Audio window and hit "W" to edit it. Or if it's already in your arrange window, double click on it right from the arrange.
In the audio editor window, use Command-A to select all (Apple-A). Then from the "Factory" pull-down window select "Time & Pitch Machine." Enter the acappella's BPM on the left and the the BPM you want it to be on the right (destination). Then process it (takes a couple minutes) and you're good. You just need to drag the acappella forward and back on the arrange window until it feels right.
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