Richard Pennycuick responds to me:

>>Hugo Alfven's Symphony no. 3 is sometimes referred to as the Erotica,
>>though it would hardly penetrate today's porn market.
>
>I suspect Richard means Alfven's 4th which generates enough steam to
>require adjustment to the air conditioning, or at least the need to
>open a window.  The rather zany 3rd doesn't have the same effect.

Perhaps.  Which one is called "from the Seaward Skerries" and has a male
vocalese in one movement and a female one in the next?

Richard, who invites you to visit his classical music site at
http://opuspocus.ca