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A while ago we taught you how to find out the title of that song that you had heard somewhere and that you liked, but you didn't know what it was. Some of those mysterious songs, possibly, you had heard in some series or movie, of background, while the protagonist was doing something interesting. Well, in that case it is not necessary to use all those techniques, since, friends, everything is on the Internet and we bring you some websites where you will find (almost) all of them.
Whether you want to know what the song is that closes the last chapter of the season, or the one that plays when the bad guy goes to bed With the protagonist or the theme of the series header, these four options will be useful to you.
Heard on TV

The Heard on TV website collects the music that sounds in almost all current and past series And not just the title song, but the entire soundtrack of the series. You can search for songs that appeared in a specific episode, part of the recurring score of the series, or any song on the soundtrack.
You have the series (and also many movies) classified in alphabetical order, but you can also search for it directly through its search engine. And the songs, they have links to iTunes, Amazon, YouTube and Spotify, so you can get it if you like it. And if you think a song is missing, you can suggest it.
TuneFind

TuneFind is very similar to Heard on TV. But this website, in addition to all the series, has a much larger catalog of movie songs. And, as you will see immediately, it also has a better and more practical design.
And once you find the song, you can listen to a snippet to make sure it's the one you're looking for and then go to Amazon or iTunes to buy it, if you want. In addition, it has a very active user community.
Spotify

Another option is to use Spotify. No longer to find that specific song that obsesses you, but to have the playlist of the soundtrack of a specific series or movie. If you are a Spotify user, you are already late.
Imdb

And finally, a basic tool on the Internet. The Internet Movie Database, Imdb. Find the series and look for in the soundtracks section. It won't be everything you're looking for, but it will get you out of more than one jam.