This sound is from Alt-J - Left Hand Free (Official Video) 1

The subject of Alt-J's "Left Hand Free" is a song released in 2014. Alt-J is a British indie rock band formed in 2007 and consists of members Joe Newman, Gus Unger-Hamilton, and Thom Green. This official music video, directed by Ryan Staake, showcases a playful and youthful vibe. It revolves around a group of friends enjoying a summer day in a lakeside setting. The video features the band playing their instruments amidst water activities, like riding jet skis, diving, and friendly competitions. "Left Hand Free" itself is an energetic rock anthem with catchy guitar riffs and infectious vocals, creating an upbeat and carefree atmosphere. If you want to experience this song's unique sound, you can play and download it from various music platforms.