The melody comes from Gran Vals, a solo guitar work written in 1902 by Spanish composer Francisco Tarrega. Nokia selected a short phrase from it and launched it in 1994 on the Nokia 2110, where it became the default ringtone as mobile phones spread worldwide. Because early phones shared the same limited monophonic sound, hundreds of millions of people learned to recognize those notes instantly. It later appeared in films, adverts and memes as shorthand for an old mobile, and it remains instantly identifiable decades after polyphonic and MP3 ringtones replaced it.