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OK, so we've installed an imported pygame.

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Now we want to start to use it, so let's come down here to our buttons and remember when we defined

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all these buttons and put them up on the screen, here's our play button.

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And if we go to the end of this thing, we could see it's got our image or border with.

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Now, we want to give this a command.

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And I'm going to call this play now whenever we want to click on a button.

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And we wanted to do something, we use these commands and this command we're calling play.

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So I'm going to copy this and then come up to the top.

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Of our app here and just kind of scroll down here, we've got all of our other functions that we've

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created so far and it's just come down here and let's go create play function.

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So we want to define this call it play now in order to actually play a song.

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It's pretty simple.

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Let's look up here when we added a song.

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Remember, we stripped out these things from the name so and are placing the first thing we want to

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do is we want to determine what song we want to play, what we want to play, the one that's been clicked

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in our playlist, the one that's active.

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Right.

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So let's create a variable called song.

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And remember, our playlist is called Playlist Box so we can go grab the playlist box.

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Get and what do we want to get?

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We want to get the active song right now, let's come down here and remember we created this temporary

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label called My Label, and it text has nothing.

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Let's no output to the screen.

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What our song is that we've just selected, so let's go my label that config, and set the text equal

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to song just to see what happens when we click this button.

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Let's save this head back over to our terminal and let's run Python player up.

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So let's add a bunch of songs.

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And let's click on one, and now when we click play, you could see it says no when sad majesty.

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So it's it's just returning whatever is in this box, right?

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So that's not great.

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We can't look up and play that song with just this stuff.

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We need that other stuff from earlier and by the other stuff.

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I mean, let's see all of this stuff.

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So we sort of deconstructed this to put it in the playlist.

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Now we need to reconstruct it and add these things back in so that we can then play the song.

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So let's do that.

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So let's go song equals and I could do an F string, this is just a python F string that allows us to

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take things and kind of smush them together.

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So let's go.

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We want capital C Colon for display space.

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We want to add in our directory structure.

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So we're in the directory MP three and we want audio because all of our songs are saved in that audio

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directory.

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And then what do we want?

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Also, we want to put these curly brackets and then put song, which is just the name of the song from

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the playlist.

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And then we also want to put DOT MP three at the end of it.

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So let's go and save this now and run it and then output this song just to see what it is now that we've

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changed it a little.

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Right.

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So let's run this guy.

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Well let's over add a bunch of songs.

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You open analysts' click hiking for instance.

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We click this now it's C colon and B three slash audio slash hiking dot MP three.

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So now that whole string is what we need.

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That's going to allow us to now look up and play a specific song.

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We know exactly on our computer where it's sitting and we can now play it.

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So let's close this and in order to actually play a song.

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So let's comment this reconstruct.

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Song with directory.

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Structure stuff, right?

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And then we actually don't need this, so we can take that label thing off and now let's play a song

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with pygame, Mixu.

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So to do that, we call pygame mixer, dot music, dot lod.

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And then what do we want to load?

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We want to load in our song, which is this thing right here, which is this newly reconstructed sort

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of string of stuff.

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Right.

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So we always this is always a two step process.

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We load the song and then we play the song.

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So to play it.

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I should probably put load song with Pygame Mixer and then here, let's play a song with Pygame Mixer,

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so we just go pygame that mixer.

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That music does not play and we can pass some variables here.

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I'm going to call loops equal zero and this is a lower L.

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I know it kind of looks like a capital L sublime does that drives me crazy, but that's a lowercase

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L and this is just basically saying play the song just once.

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If we want it to loop and just keep playing you, you can have it play five times.

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You could just put loops equal five.

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We just wanted to play once and so loops equals zero.

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So let's go and save this and run it.

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So pull this over, add some songs.

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Let's play hiking our.

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Seems to work.

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Look, another one it plays.

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Right.

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Very cool, so that's how to play a song now none of these other buttons work, and I think we're going

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to need to fix those.

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I think we'll do the stop button next, and that'll be in the next video.