The accompanists are Steve and Kristi Oostdyk. While growing up, Kristi accompanied her home church in hymn singing and has served as a worship leader and director. She teaches elementary music and middle school choir at Wayland Union Schools near Grand Rapids, Michigan. Steve is also a lifelong musician who has spent several churches as an accompanist, worship leader, performer and producer. Steve works for a national accounting firm.
Pfeiffer House Music was developed by Steve and Kristi, named in memory of Kristi's grandmother, Adele Pfeiffer of Byron Center, Michigan.