She sang on the night of Johnny Dankworth's death last week, performing along with their children Jacqui and Alec in a Wavendon 40th anniversary concert, and since her man's gone now, Cleo Laine is equally determined that the show should go on in Pinner this Saturday. Rumour has it that the one-off voice is still in good nick after more than forty years in the business, so catch the concert if you can - and if there are still tickets left - in part of Pinner Jazz Club's season at the Parish Church. In the meantime, here are Cleo and Johnny, long before they became Sir and Dame, back in 1965.

Should we be silent in classical concerts?  Alex Ross, the classical critic of the New Yorker and writer of the superb panorama of 20th Century music The Rest Is Noise: Listening to the Twentieth Century, an “unlikely mass-market proposition” which has been a bestseller on both sides of the Atlantic will be giving this year’s Royal Philharmonic Society Lecture. His talk is entitled Inventing and Reinventing the Classical Concert and will be given on 8 March at the Wigmore Hall. In the lecture Alex Ross will address concert culture - what has changed since the 18th century and what can we take forward into the 21st?

Mine's a Strawberry Mivvi, if you are buying, thanks. Suburban Counterpoint: Music for Seven Ice Cream Vans is a deliciously intriguing work by composer Dan Jones that does what it says on the tin. It will be performed as part of this year's Norfolk and Norwich Festival in May, before being reprised in London.

Singers are always calling in sick. The merest puff of wind can blow a voice into A&E. The tiniest tickle in the throat can leave 2000 people jilted. They build instrumental musicians more robustly, especially brass players, so when David Pyatt told the London Symphony Orchestra, for whom he is co-principal horn, that he has an infected wisdom tooth, that's what he's got.

That nebulous tag, Outsider Art, is stuck to self-taught artists inhabiting the margins of society and sometimes the norms of sanity, those unconnected to Art Institutions, and some who operate according to the whims of their internal visions. Tomorrow the ICA hosts what promises to be a wild and probably unruly debate on Outsider Art, with Outsider supporter Jarvis Cocker and maverick ex-Stuckist Billy Childish joining James Brett, the collector who founded the astonishingly popular Museum of Everything (closing Sunday), and David MacLagan. lecturer and psycho-therapist and author of the recent book, Outsider Art from the Margins to the Mainstream (Reaktion Books). Childish will stir the brew nicely - and plug his ICA exhibition, Unknowable but Certain opening on 15 February. Will they come up with new definitions, illustrate examples, fathom out if the recent love affair is another Art Fad or a lasting interest? But be there or be Outside.

Book for Don’t call me Crazy: How we fell in love with Outsider Art. ICA, London, 10 February, 6:45pm.

As Jude Kelly put it today, the Southbank Centre’s Festival Brazil this summer is about a country "living its future now" (link here for the initial programme).