History
The first record chart was founded in 1952 by Percy Dickins, who was working at ''New Musical Express'' at the time. Dickins would telephone roughly twenty UK record stores and ask what their best-selling records were that week. Several similar charts followed after the success of the NME chart, including ''Chart hit
A ''chart hit'' is a recording, identified by its inclusion in a chart that uses sales or other criteria to rank popular releases, that ranks highly in popularity compared to other songs in the same timeframe. ''Chart-topper'' and related terms (like ''number one'', ''No. 1 hit'', ''top of the charts'', ''chart hit'', and so forth) are widely used in common conversation and in marketing, and are loosely defined. Because of its value in promoting recording artists and releases, both directly to the consumer, and by encouraging exposure on radio, TV, and other media, chart positioning has long been a subject of scrutiny and controversy. Chart compilation methodology and data sources vary, ranging from "buzz charts" (based on opinions of various experts and tastemakers), to charts that reflect empirical data such as retail sales. Therefore, a ''chart-topper'' may be anything from an "insiders' pick" to a runaway seller. Most charts that are used to determine extant mainstream popularity rely on measurable data. Record chart performance is inherently relative, as they rank songs, albums, and records in comparison to each other at the same time, as opposed toTerminologies
There are several commonly used terms when referring to a music/entertainment chart or the performance of a release thereon. A ''new entry'' is a title which is making its début in that chart. It is applied to all charts, for instance a track which is outside the Top 40 but which later climbs into that level of the chart is considered to be a 'new entry' to the Top 40 that week. In most official charts, tracks have to have been on sale for a period of time in order to enter the chart; however, in some retailers' charts, new releases are included in charts as 'new entries' without a sales history in order to make them more visible to purchasers. In the UK, the official published chart is a Top 100, although a new entry can take place between positions 101–200 (also true of the ''Billboard'' Hot 100, which has a " Bubbling Under" addendum for new songs that have not yet made the Hot 100). A "Top 40" is used by radio to shorten playlists. A ''re-entry'' is a track which has previously entered a chart and fallen off of that chart, and then later re-appears in it; it may come about if a release is reissued or if there is a re-surge of interest in the track. Generally, any repeat entry of a track into a chart is considered a re-entry, unless the later version of the track is a materially different recording or is significantly repackaged (such as Michael Jackson's "Thriller 25"), where the release would normally be considered separate and thus a "new" entry. A ''climber'' is a release which is going higher in the chart week-on-week. Because chart positions are generally relative to each other on a week-to-week basis, a release does not necessarily have to increase sales week-to-week to be a climber, as if releases ahead of it decline in sales sufficiently, they may slip below it. By the same metric, not all week-to-week sales increases result in a climber, if other releases improve by a sufficient amount to keep it from climbing. The term ''highest climber'' is used to denote the release making the biggest leap upwards in the chart that week. There is generally not an equivalent phrase for tracks going down the chart; the term "faller" is occasionally used, but not as widely as 'climber'. A '' one-hit wonder'' is an act that appears on the chart just once, or has one song that peaks exceptionally higher, or charts for exceptionally longer than other chart entries by the act. The term ''true one-hit wonder'' was the term given by the ''Guinness Book of British Hit Singles & Albums'' (and also the ''Billboard'' book ''Top Pop Singles'') for an act that has one top 40 hit and nothing else on the chart ever. If an act appears in some other form (for example, a solo act that appears with a band or with other act), then they are taken separately.See also
* List of record charts * Hit paradeReferences
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