Recording contract
A recording contract (commonly called a record deal) is a legal agreement between a record label and a recording artist (or group), where the artist makes a record (or series of records) for the label to sell and promote. Artists under contract are normally only allowed to record for that label exclusively; guest appearances on other artists' records will carry a notice "By courtesy of (the name of the label)", and that label may receive a percentage of sales.
Copyrights, payment and royalties
Labels typically own the copyright in the records their artists make, and also the master copies of those records. An exception is when a label makes a distribution deal with an artist; in this case, the artist, their manager, or another party may own the copyright (and masters), while the record is licensed exclusively to the label for a set period of time. Promotion is a key factor in the success of a record, and is largely the label's responsibility, as is proper distribution of records.