My feeling was.. he is a little bit proud of it.. he was perhaps showing off a little.. he knows you will 'get' what an achievement this is, as you understand the music world he works in and like you say, you have collaborated with traditional musicians before.. so its more of the same.. he seems to respect your opninion and knows you understand him.
Thats a good thing! Especially after that slightly awkward phone convo you had last month. And I got that you were being sarcastic! So.. yes, reply, leave it a little while (Monday?) and say it was great, thanks for sending it, blah blah... be warm, be enthusiastic! Why not, I bet he will be a bit puffed up by a pigeon by you liking it.
Glad he sent you a note and did he really put kisses on the end !?? And is that a new thing?
