Bravado Men's Trans-Siberian Orchestra Erasmus T-Shirt 100% Cotton Machine Wash Trans-siberian orchestra often abbreviated to tso is an american progressive rock band founded in 1993 by producer, composer, and lyricist paul o'neill The band is most famous for their series of christmas-themed rock operas (christmas eve and other stories, the christmas attic, and the lost christmas eve), for which they do an annual fall/winter tour