[3] The idea behind the show was coined by Carl-Eiwar Carlsson and Klas Burling, who both had history of working in record shops and as such knew what records most teenagers and young adults were buying and consuming and thus wanted to lead a radio show based on this.
[4] Unlike contemporary record charts, who often compiled lists based on record sales, Tio i Topp based their list on audience reaction; each week a jury consisting of about 200 people were placed in front of a mentometer upon which 15 songs are played through speakers, after which they'd vote on the song they liked most.
[6] An example of this is "Very Last Day" by the Hollies, which had been featured on their eponymous 1965 album and wasn't released as a single in most of the world; it reached number one in June 1966.
[8] This led to Sveriges Radio starting Kvällstoppen, which compiled a weekly chart based on sales rather than an audience response during the summer of 1962.
[5] The first song to reach number one on the chart was "I'm Gonna Knock on Your Door" by Eddie Hodges on 14 October 1961.