Possible Clues:

• Maestro's choke engaged by country resident here on raised land
• Composer to play jazz in African country and UK, we've heard
• Composer's preserve in African country – and ours, reportedly
• Scorer's plight in African country — and his own, say
• Composer who, with Peter Pears, founded the Aldeburgh Festival
• He composed stuff in the country another recited
• Composer's plight in country, stung when crossing river