Saint Cecilia

I confess to remaining unclear as to how Selina resembles St Cecilia at this point; the saint was revered for maintaining her vow of chastity, even when married to a Roman nobleman: converting him to Christianity and sexual abstinence and leading to their joint martyrdom at the hands of the Roman governor; she also became the patron saint of music (in the Renaissance), through a reference in a later account of her life – perhaps some confusion of saints on James’s part is at work? or have I missed some obvious irony?