This clip comes from an old Yamaha SMAF demo that was later compressed and shared on a soundboard. SMAF, Yamaha's synthetic music format for mobile phones, used FM synthesis to create compact polyphonic tones for ringtones and handheld applications. As those early phone sounds became nostalgic, short demos like this one found a second life online as background music for retro edits, tech throwbacks and meme videos, valued less for length than for their instantly recognisable early mobile sound.