How to do synchronisation in audioplayer Matlab?

I am trying to play 4 sounds one after one using playblocking function. Is there anything lik asynchronizing until one song is done?

I used playblocking, but when I pause the song, the first song haults, but then the next song plays. I tried using two loops to break the flow once the sample rate is over but that is also not working. Here's my UI:

Here's my play code:

global songnames;
            global currentSong;
            global player;
            global pausing;
            global currentRate;
            if(pausing==1)
                resume(player);
            end
            if(~isempty(currentSong))
                %start=get(player,'CurrentSample');
                %stop=get(player,'TotalSamples');
                [y,Fs]=audioread(string(songnames(currentSong)));
                player=audioplayer(y,Fs);
                start=get(player,'CurrentSample');
                stop=get(player,'TotalSamples');
                for(i=1:length(songnames))
                    playblocking(player);
                end
            end
            

And here's the code for pause callback:

global player;
            pause(player);
            disp('Text in');
            global pausing;
            pausing=1;
            

Do let me know if you have any opinion on this. Kindly suggest a solution with functions available within 2019a.