 The performance features Harrison singing falsetto throughout, and a musical backing that includes guitars and percussion.Although the subsequent album sessions were marked by disharmony and a lack of cooperation among the band members, author and critic Kenneth Womack comments that the Kinfauns demos "witness the Beatles working in unison and exalting in the pure joy of their music".Leng similarly describes the group's performance of "Sour Milk Sea" as an "exciting" version "[p]layed with real enthusiasm".