He also wrote duos, trios and quartets. Both the solos and duos formats consisted of six matches. The weeks alternated between solo players and duos teams. In 2008, an album of duets, "Duos", was released. An estimated 40 million players vied for spots in the solo and duos World Cup. The Pekinels are among the world's most well known piano duos. There are multiple modes, the main ones being Solo, Duos, Squads and LTM. All D.I.Y. punk-country-blues-metal singer-songwriting duos should sound this good. Sinclair also wrote and produced the duos musical albums they released independently. Los Compadres were one of the most successful Cuban duos of their time. The two duos have performed together as holograms. They became one of the most sought-out duos in the genre. Folk duos, such as 19, Yuzu and Kobukuro, became popular during the period. Lorelai and Rory were listed in "Paste" 35 Greatest TV Duos of All Time. One of the competing duos was from german-speaking Austria.