Following perhaps intentionally on the warm reception received by that recent posting of a three-part video showing Gavin Bryars’ Sinking of the Titanic being performed live at the Big Ears festival, we now have the other half of that very same record album, the first from Brian Eno’s Obscure label back in 1975. This is the ensemble Psappha on October 12, 2016, at the RNCM Theatre in Manchester, U.K., conducted by Clark Rundell. (The group’s general manager and artistic director is Tim Williams.) The work is “Jesus’ Blood Never Failed Me Yet,” which takes the melody inherent in a creaky recording of a homeless man singing a hymn in a painfully sweet and wavering rendition and renders it in a gentle, sensitive setting that suggests a heavenly chorus if not outright beatification. Emphasizing the group’s attentiveness is how serenely they sit for the four full minutes before they actually join the nameless singer, whose verse is heard as a recording to which they eventually play along.