Charts: guidelines and annotation

Reference page for music chart annotation and guidelines

The term "charts" refers to the UK Official singles or albums Charts unless otherwise stated.

Annotations

 * N1 no.1 single or album
 * N2, N3, N4 no.2, 3, 4 etc.
 * NN1 new no.1
 * NE new entry
 * HNE highest new entry
 * RE re-entry
 * (3) previous week's chart position
 * Artist - Title (singles)
 * Artist - Title (albums)

Significant dates and day of the week guide

 * 1) The first BBC 'official chart' compiled by BMRB was compiled on Saturday 15 February 1969 and used by Radio 1 and BBC One for Top of the Pops during the following week. (for a detailed history of chart compilation see here)
 * 2) The Pick of the Pops programme broadcast on Sundays from 5.00 pm, initially on the Light Programme and then on Radio 1, was the radio show which first announced the Top 20 until 24 September 1972, after which it became part of Solid Gold Sixty, with Tom Browne, first broadcast 01 October 1972.
 * 3) The UK singles charts were announced on a Tuesday lunchtime on BBC Radio 1 from January 1973 until 29 September 1987. When the initial Tuesday announcements began is unknown although Radio Times/ BBC Genome specifies for the first time that DLT was including 'This week's Top Twenty discs' on his show as from 30 January 1973. A chart singles show continued to be broadcast during this time on Radio 1 on Sunday evenings (carrying on the tradition of Pick of the Pops) although was not a 'new' chart, but was still the same one announced the previous Tuesday.
 * 4) Starting from 04 October 1987 the brand new UK singles charts were announced on the Sunday afternoon show by Bruno Brookes.
 * 5) The UK charts were announced on a Friday as from 10 July 2015.
 * 6) The singles charts formed the basis of TV show Top of the Pops until 2006, when it was taken off the air on 30 July.