[Music] Tension rises when entering FamilyMart

At 4:22 the "tenchou" arrives. (TL note: "tenchou" means both shop manager and modulation)

At 4:22 the “tenchou” arrives. (TL note: “tenchou” means both shop manager and modulation)

Title (Japanese) 【ファミマ入店音】ファミマに入ったらテンションがあがった【Remix】
Title (Translated) 【FamilyMart shop sound】Tension rises when entering FamilyMart【Remix】
User KN
Upload date September 4 2009
Video link sm8129671 (5:59)
Japanese skills required? No

This (as of writing) triple million video is a Nico classic.

FamilyMart is a chain of convenience stores in Japan and when entering the store you are greeted with a doorbell chime. KN uses the electribe (an electronic musical instrument) to remix the two bar chime into fully fledged house song by adding components such as percussion, drums and even using DJ-like effects!

KnowYourMeme has a page on FamilyMart jingle remixes here.