Wow, the theme of this crossword was certainly prolific, cantatas to new swimming baths, old polytechnics and a million other equally interesting things. I have been up and down the list of his works and 41ac still eludes me and I am now giving up. For those not doing this, it is an unclued light, so I'm really just having a moan. Carl Nielsen I salute you, have never heard of you and can't wait to hear your cantata to the new swimming baths!