In the spring of 2011 John Bumstead and Javier Caballero found themselves performing together in the ‘band’ for the musical The Last Five Years. Written for just six instruments, the score called for a third of them to be cellos. Bumstead and Caballero so enjoyed playing together that they began exploring the literature for cello duo. Based in Boston they have been performing in the city and on recital series in Eastern Massachusetts.