Kathy Blackwell studied music at Edinburgh University and continued with post-graduate studies in music at the University of Oxford. Kathy is a string teacher with many years' experience of teaching violin and viola. She was a strings consultant for the ABRSM Music Medals, and a contributor to the accompanying book All together! Teaching Music in groups (ABRSM, 2004). She has worked for Music Services and privately, and her teaching experience has led her to co-author Fiddle, Viola, Cello Time, and String Time with her husband, David.

David Blackwell studied music at Edinburgh University, and for many years worked in music publishing, becoming Head of Music Publishing at Oxford University Press. He is co-editor of OUP's In the Mood: 17 Jazz Classics for Choirs and Carols for Choirs 5, and has published a number of single choral arrangements. He is co-writer with his wife Kathy of OUP's award-winning string series, Fiddle/Viola/Cello Time, which have twice won the MIA award for Best Educational Publication.