Thanks Jack. Meantone intonation is an unfamiliar term to me. How ever am I to understand that Turkish classical music would be compatible with Meantone. Would it be too much of a leap to suggest that the same fluidity might exist within Sean Nos style singing for example, or am I way off tune. I am a great believer in looking for practical answers, as your point about exhausted pipers demonstrates. Thank you again for taking time and trouble.