20th Anniversary Double Vinyl LP Edition of the Trans-Siberian Orchestra's The Christmas Attic. The second installment in The Christmas Trilogy, 1998's The Christmas Attic tells the story of a little girl who spends a night in an attic filled with yuletide reveries, while guitar solos and choral vocals soar over a rock orchestral backing across 16 tracks. Home to "Christmas Canon," the Trans-Siberian Orchestra's famous variation of Pachelbel's Canon in D Major, the 20th Anniversary Edition also boasts a previously unreleased version of "Christmas Jam (Live)."