Double whole note either of two ways: by a hollow oval note head, like a whole note, with one or two vertical lines on either side, as on the left of the image, or as the rectangular shape also found in older notation, shown in the middle of the image (; ). Because it lasts longer than a bar in most modern time signatures in common use, the breve is rarely encountered except in English music, where the half-note is often used as the beat unit . A related symbol is the double whole rest (double rest or breve rest), which usually denotes
2000s in the music industry of sites that sponsor artists and allow users to download music in exchange for advertising for the artist. Music is essentially free to users essentially costing only the time it takes to post information about the artist downloaded on Facebook, Twitter, or email. Another example was the release of the Radiohead album "In Rainbows" in which users could download the album and name their own price. The idea of pay what you want music consumption is new, but catching on with users and growing. This trend has broader implications in the use of formats. It has been a trend in