1966 in music
List of notable events in music that took place in the year 1966.
Billboard's year-end list for 1966 included Hot 100 data from January to December 10, 1966, and used an early formula of awarding 100 points to the number one record, then ninety-nine points for number two, ninety-eight points for number three, and so on. The total points a record earned determined its year-end rank. Billboard soon realized the increase to 100 positions per week greatly diluted the accuracy of its chart, as opposed to twenty years ago, when charts had 10-30 positions. The impact of a no. 1 song scoring 20 points for no. 1 and 10 points for no. 10 (20 position chart) is huge compared to 100 points for no. 1 and 90 points for no. 10. A record with 8 weeks at no. 1 could have its advantage wiped out by the no. 10 record if it spent one additional week on the Hot 100, which is exactly what happened to the hottest artists, like the Beatles, Elvis, and others, whose records debuted at very high positions, quickly shot to the top, sold hundreds of thousands of records each week at no. 1, and then quiuckly dropped off the chart. An example is "We Can Work it Out", no. 49 on the 1966 year-end chart, despite three weeks at no. 1. However, it lost 155 points because its debut at no. 36 and second week at no. 11 fell on the last two weeks of December 1965, and Billboard did not count them. Three weeks at no.1 and seven weeks in the top 5 were of little ad vantage. However, by 1970, huge bonuses were being awarded to the no. 1 record each week, as Billboard searched for a better formula.
(Not all of these were necessarily released as singles.)


