Grammys change rules on samples
The Grammy Awards rules have been changed to allow samples to be used on songs nominated in songwriting categories.
The Recording Academy has made a number of changes to its rules, most notably allowing samples to be used in all songwriting categories, including the all-genre song of the year.
Previously, samples - snippets of previously recorded material or songs incorporated into a new work - had been allowed only in the Grammy Awards' best rap song category.
For example Justin Timberlake's collaboration with Jay Z, Holy Grail, was last year nominated for best rap song, but under the new rules would now be eligible for the song of the year Grammy.
The academy also reorganised the Gospel and contemporary Christian category, formalised the definition for the alternative music field, and added a category for best American roots performance.
The addition means 83 awards will be given at the 2015 Grammys, and it brings the American roots music field into step with other major categories.
The changes were made at the academy's recent spring board of trustees meeting.