Listen to Fantasia on a Theme by Thomas Tallis: Opening online. Fantasia on a Theme by Thomas Tallis: Opening is an English language song and is sung by London Philharmonic Orchestra and Sir Adrian Boult. Fantasia on a Theme by Thomas Tallis: Opening, from the album Classical Chillout, was released in the year 2009. The duration of the song is 6:09. Download English songs online from JioSaavn.