Imagine yourself being in that one place where the songs and tunes being played are so good you can't help but hum or sing them from time to time, even if you get the lyrics or the tune wrong.

This feeling is a classic example of last song syndrome, or LSS — a situation when you can't get a song that you listened to out of your head, and you keep singing or humming it over and over, according to 7esl.

However, knowing the tune and lyrics of a song is different from actually knowing the song or the tune's title, which is crucial if you want to turn your LSS into a permanent record. After all, your memory can only take you so far before you start forgetting something, in this case, parts of the song's lyrics or how a tune goes.

Fortunately, Google has a tool that answers this very issue.

Google's "Search A Song" Feature — What Is It?

Google previously released a feature called "Search A Song," which enables people with LSS such as yourself to search for a song by just humming or singing a melody to Google directly.

If you're afraid that Google will not be able to search for the song you're looking for using this feature because you're tone deaf or you don't know the lyrics, don't be. Google uses a machine-learning algorithm that helps identify the likeliest potential song matches based on the tune detected. However, it's up to you to sift through the results Google sends back to find the song you are looking for.

The machine learning algorithm works by matching the tune you're humming or the lyrics you're singing to the right melody or fingerprint."

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Once the algorithm detects the melody you're humming or singing, it transforms it into a number-based sequence. This sequence doesn't include other details, such as instruments and your voice's timbre and tone.

The algorithm then compares the number sequence obtained from the song's melody to songs from around the world and identifies potential matches in real-time.

How To Use "Search A Song"

To use this particular feature of Google, you'll need the latest version of the Google app or find your Google Search widget on your smartphone. Once you've opened either of the two, tip the mic icon and say "What's this song?" or click the "Search A Song" button.

Doing so will change your screen into a Google-themed spectrogram that moves according to the melody you are humming or singing. You'll have to hum or sing the song you want to be searched for five seconds for the algorithm to work its magic.

Once the algorithm finds matches to the melody you hummed or sung, it will show the most probable results to you immediately. It'll be up to you to find the right match based on Google's results, but our tests show that the first result is usually correct.

The feature also works for videos or other media. Just point your smartphone's mic to a speaker and start playing the song on the other device to search for the song you're looking for.

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