If you begin to notice more of those befitting songs in the coming months and years, a newweb app released Wednesday could be the reason why.Extreme Music, a popular music production library, just introduced a new feature called Customix to its website.

Customix lets music supervisors quickly edit songs they plan to license. The app allows users to adjust the volume to individual elements of a track (vocals, drums, guitar, bass, etc.), change a song's tempo without changing its pitch and edit the length of a song without cutting it into pieces.

"This is a really dramatic change in the way in which we work and in which our clients work," Extreme Music CEO Russell Emanuel told Mashable. "The whole ethos behind this is that it breathes many different lives into one single musical track."

Customix works with many of the 13,000 songs in Extreme Music's library, which includes tracks from artists like Hans Zimmer, Quincy Jones, George Martin and Snoop Lion. One doesn't need one of those producer's acumen to use Customix, however -- it was designed as an easy-to-use tool.

"One of the powers of this application is that it turns you into a music editor without needing the deep music knowledge that a skilled music supervisor would need," Emanuel said.

Given a demo version, I was able to customize a track in under five minutes. After logging in, I first selected a type of music -- "Celtic Punk." Then I picked a song called "Craic Addict" (craic is an Irish term for fun). I entered that I wanted the song to be one minute in length, at which point the app smartly adjusted. Then I muted the vocals, drums, electric guitars and lowered the volume on the bass. Lastly, I dropped the tempo to 120 beats per minute.

In just a short time, I turned an agressive song with a driving beat, which sounded like it should have been in The Departed, into a mellow and sweet tune, perfect for my imaginary one-minute clip. Check out the screenshot below to see my customized "Craic Addict."

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Songs from Extreme Music's library grace the soundtracks of works such as Lincoln, Mad Men and Dexter. Kevin Edelman, of Metalman Music, is the music supervisor for several shows, including Homeland and Criminal Minds. He recently demoed a beta version of Customix.

“To be able to create my own mix on the fly, plus the ability to change the speed of a track, makes my life so much easier," Edelman said in a press release. "This really is a giant leap forward and seriously changes the game.”

According to Emanuel, Extreme Music is the only production library that offers anything like Customix, but that will not last long.

"There's no question in my mind that everyone will be working this way," Emanuel said. "It's a dramatic change in the industry."

Information about Customix leaked last week. ImmediatelyUJAM, the app's developer, began getting requests from other companies for similar products.

"We cannot disclose who we are in negotiations with, but we have seen enormous interest since the Customix information has leaked," UJAM CEO Axel Hensen told Mashable. "Businesses in this space realize this technology is essential for a competitive advantage."

Customix is only available to Extreme Music's subscribers, which means it's probably not for you unless you're an industry pro, or if you're independently producing high quality content for digital distribution. On the bright side, that means you can just kick back and relax, knowing that more felicitous music is on its way to the shows and movies you love to watch.

Images courtesy of Flickr,Anders.Bachmann, and viaExtreme Music

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