The recorded hymns were played by Kristi Oostdyk. While growing up, Kristi accompanied her home church in hymn singing. Kristi graduated from University of Michigan with a BA in Music Education and MA from Western Michigan University. She currently teaches Music at Wayland Union Schools near Grand Rapids, Michigan. She and her husband Steve started Pfeiffer House Music in 2002, providing elementary music lesson plans on the sister site LessonPlansForMusic.NET
Pfeiffer House Music was developed by Steve and Kristi, and was named in memory of Kristi's grandmother, Adele Pfeiffer of Byron Center, Michigan.