Ever wonder what a rain-soaked concrete wall would sound like if you converted it into an audio file? Turns out the result is mildly interesting, mildly musical, and a viral sensation.

Yesterday, user Reddit_At_Work_Lol shared a photo with Reddit’s Mildly Interesting community. The image shows a wall bordering a parking lot near the Dallas/Fort Worth International Airport, with the caption: “The way the rain dripped down this wall makes it look like a waveform.”

But the post escalated from mildly interesting to medium interesting when a series of redditors expanded the curious photograph into an avant-garde work o’ fart.

Chapter One: Rain Fart

First, Reddit user adilemma wondered what the “waveform” pattern would sound like if it could somehow transform from a picture into an audio file. Undeterred, the budding musician began the process by adjusting the colors and isolating the wave-like pattern:

Then with a bit of digital elbow grease, adilemma highlighted the oscillating lines:

Next, adilemma graphed the curves as a playable waveform:

Finally, the mad scientist sampled the waveform to produce this unforgettable sound. At first listen, it might not seem worthy of the wait, but the audio earned high marks from the wet wall’s original photographer:

(You really have to hear it to appreciate.)

Chapter Two: Rainfart Remixed

After adilemma laboriously extracted the bass-like “rain fart” from the photo, a group of musical redditors offered their services by using the sample as the basis for some original compositions.

User 8u6 led the band with an infectious, head-nodding techno loop—elegantly titled “Rainfart Bass“:

Not to be outdone, redditor GrizzledBastard composed a full-length track, complete with a minimalist intro, beautiful melody, and rousing rain-fart conclusion:

The praise was unanimous:

With GrizzledBastard’s hot new single at the helm, the only task remaining in the musical odyssey adilemma began was to release an album—an album of rain farts.

Chapter Three: Rainfart Goes Vinyl

First, Reddit_At_Work_Lol devised a title for the new track:

Once the title leaked, it was only a matter of time before album art followed.

Within a few hours, redditor thefreund completed the epic saga with one last masterpiece: an album cover for the vinyl release of The Sound of Rain, that timeless classic of mid-2010s rain-fart techno by Reddit_At_Work_Lol.

Unfortunately, The Sound of Rain is not available on iTunes, Spotify, or at your local Urban Outfitters. Instead, The Sound of Rain is played in the hearts of those who witnessed the song’s mildly interesting genesis on Reddit, step by mildly interesting step.

However, legend has it that at a mysterious parking lot somewhere near the Dallas/Fort Worth International Airport, a tuneful, oddly flatulent sound can be overheard—and smelt, ever so faintly amidst the petrichor—if only for those who stare at the right wall and listen with their eyes.