Possible Clues:

• Higher prelate's office
• Choir ceased working in province
• See reward ultimately in knowing the jargon of Olympic admin?
• See core ideas changing about Church
• Choir ceased frolicking in prelate's 'manor'
• Choir ceased singing in the prelate's see
• Recollected coach rides going round centre of Leeds or York, say
• Choir ceased performing in York, for example
• Dire coaches travelling from eg York
• Important church area