Happy Birthday, Brahms. What did you do to that B major Trio?

It's Brahms's birthday. Today, before twigging the date, I heard something I've not encountered before that nearly made me choke on my Cornflakes. It's the original version, dating from 1854, of his B major Trio, Op.8. The revised version, from 1890, is the one generally performed now, acknowledged the world over as a masterpiece. This is very different.

In 1854, Brahms was 21. That year, in February - just five months after Brahms met him and Clara for the first time - Schumann suffered a mental breakdown and attempted suicide; he then went, at his own request, into a mental asylum at Endenich. Brahms spent the next two years being supporter-in-chief to the grieving Clara and the large brood of Schumann children. Schumann died in the asylum two years later.

Guess what Brahms excised from the last movement of that trio? Its first version is replete with a rather familiar theme. It is "Nimm sie hin denn, diese Lieder", from Beethoven's An die ferne Geliebte - used by Schumann, in his youthful days when he and Clara were trying to communicate against her father's instructions, as a coded message - most of all in the Fantasie in C major, Op.17.

Here is what Brahms did with it. What it - and its absence from the 1890 version - tells us about the turbulence of that last movement, and the tragic climax to which he brings it, can only make us wonder what else he hid, revised or burned later in life. It's played here by the Trio Jean Paul - named after the writer who so influenced Schumann.

Hannibal hits the high notes... plus the Monty Python of music, a mountaineering composer and a brand-new piece by Brahms

"I thought I'd end up in the steelworks in Port Talbot for the rest of my life," says Sir Anthony Hopkins. Is he the most open and straightforward person I've ever interviewed? Certainly one of them. And it was rather touching to hear that familiar voice speaking to me from Los Angeles, and to realise that his own, natural accent remains distinctly Welsh. As you'll know by now, Classic FM is bringing out an album of music by Hopkins. Today my interview with him about it is in The Independent. Read it here.

More light reading for Friday morning: I have an interview with the fantabulous and very funny pianist Jonathan Biss in the JC this week, which is here.

And back at the Indy, we meet the young Italian composer who went up a mountain to create a tune with a view...

That should hopefully entertain you over your coffee. And here's a bonus: a "new" Brahms piano piece has turned up in America and is to have its world premiere on BBC Radio 3 on Music Matters, 21 January, played by Andras Schiff. Christopher Hogwood apparently stumbled upon the work which looking through a collection of manuscripts in the US that had once belonged to the director of music at Göttingen University. The piece, a complete Albumblatt about two minutes long, was written in 1853 when our Johannes was all of 20 - the year he met Schumann and Clara for the first time. Perhaps it would have been amongst the pieces he performed to them on that first visit in Dusseldorf. It is apparently an early version of what became the trio section of the scherzo in Brahms's Horn Trio. The Guardian has more on this, here.