Rolf Wallin 'S Ciacconetta Was Composed As One Of Thirty-One Variations For Solo Cello On The Famous 'Chiacona Per Basso Solo' By Giuseppe Colombi, Each By A Contemporary Composed, Marking The Fiftieth Birthday Of Renowned Finnish Cellist Anssi Karttunen In 2010. The Complete Collection Of These Is Published As&Nbsp; Mystery Variations .