Irish Singles Chart

The Irish Singles Chart (Irish: Cairt Singil na hÉireann) is Ireland's music industry standard singles popularity chart issued weekly by the Irish Recorded Music Association and compiled on behalf of the IRMA by Chart-Track. Chart rankings are based on sales, which are compiled through over-the-counter retail data captured electronically each day from retailers' EPOS systems. Currently all major record stores and over forty independents submit data for the charts, accounting for over 80% of the market, according to Chart-Track. A new chart is compiled and officially released to the public by the Irish Recorded Music Association on Friday at noon. Each chart is dated with the "week-ending" date of the previous Thursday (i.e. the day before issue). The singles chart was first published on 1 October 1962, and covered the top ten singles of the previous week by record label shipments.

History

The charts were first broadcast on RTÉ on 1 October 1962. Before this charts had been printed in the Evening Herald newspaper, but it is debated as to whether they are official or not. Up until 1972 the Irish Chart was based on telephone sales received from record retailers based on over the counter sales to the public. The compilers of the chart changed several times and in January 1972 the chart changed to one based on sales from manufacturers to retailers. From October 1975 to February 1977 the chart was compiled from votes from readers in the Evening Herald newspaper. There was a separate Irish and International artists chart for a time during this period. From 1977 the chart once again became based on sales from retailers to the public but during the early 1980s this again changed and was once more based on sales from manufacturers to retailers. Currently Pop4 on the Irish speaking channel TG4 lists the charts and RTÉ 2fm broadcast the top 30 of chart on every Friday from 8pm to 10pm.

Record chart

A record chart is a ranking of recorded music according to popularity during a given period of time. Examples of music charts are the Hit parade, the Billboard Hot 100 or Top 40.

Many different criteria are used in different charts, including sales of records, cassettes and compact discs, the amount of radio airplay, and since the introduction of digital technology, the number of downloads and the amount of streaming activity.

Some charts are specific to a particular musical genre and most to a particular geographical location (although download charts are not easily pinned down in this way). The most common period of time covered by a chart is one week with the chart being printed or broadcast at the end of this time. Summary charts for years and decades are then calculated from their component weekly charts. Component charts have become an increasingly important way to measure the commercial success of individual songs.

Chart hit