Love it or hate it Christopher Alden’s A Midsummer Night’s Dream at English National Opera last year made quite the impact, banishing any fey woodland glades and general waftiness from Benjamin Britten’s opera and embracing a rather more astringent visual aesthetic. It’s unfortunate then that Martin Lloyd-Evans’s production for the Guildhall School of Music and Drama should follow so closely behind, begging comparisons that don’t best serve his World War II interpretation.

A remarkably tidy parade of thousands upon thousands of objects, neatly grouped into their categories – soap, plastic bottles, cooking pots and utensils, empty cardboard boxes, shoes, flower pots, gloves, string, to name but a few – Waste Not is a deeply disturbing yet affecting display of the obsessive accumulation of sheer stuff. These are the household goods of Zhao Xiang Yuan, the mother of the Chinese conceptual artist Song Dong, collected over five decades of family life. 

To Charles Rosen it was a work of "rarely redeemed dullness". The wife of Emperor Leopold called it "German rubbish". It's pretty obvious why so many have objected to Mozart's final opera La clemenza di Tito. Tunes (memorable ones) are by and large lacking, which is odd for Mozart. The overture is not something you'd want to hear on its own. And the work's great solo arias are unwieldy in form (though fascinatingly so) and tricky to sing and separated by the vast wastes of a notorious recitative.

Another week, another tragedy, and another wedding dance routine set to a thumping soundtrack. But while The Changeling buckled under the pressure Joe Hill-Gibbins applied at the Young Vic a few weeks ago, Cheek by Jowl’s ‘Tis Pity She’s A Whore bleeds fresh and glossy under Declan Donnellan’s assured touch. This pop-culture remix of a Jacobean classic will pulse long in ears and eyes – a macabre delight that makes a first-rate evening out of a rather second-rate play.

It’s over 30 years since André Previn left his post as principal conductor of the London Symphony Orchestra. But once you’re part of the LSO’s treasured ‘family of artists’, the orchestra never lets go, year upon year inviting you back for Christmas, New Year, weddings, bar mitzvahs, any occasion going. The same with the violinist Anne-Sophie Mutter – briefly in the last decade Previn’s fifth wife, though they share the same platform with just as much ease now that they’re divorced.

The problem with being the closest major European capital to the United States is that touring American orchestras always visit us first or last. When they hit London, they're exhausted. This was very noticeable the first time the New York Philharmonic dropped by with their new chief conductor Alan Gilbert a few years back. They were a pale and baggy-eyed lot compared to the alert team I'd seen and heard just a few months before in New York. 

Naturally 7 represent the point where close-harmony singing, beatboxing and spookily accurate instrumental imitation meet. The US septet call it "vocal play" - the voice as instrument - and last night they sent dopamine levels soaring in the Barbican. The group conveys the beat-driven swagger of hip hop, the freewheeling improv of jazz and the trenchant emotion of soul, often within the confines of a single song. Their arrangements, courtesy of MD Roger Thomas, possess such textural imagination and technical finesse that they're able to traverse genres seemingly without artifice.

Dickens has been getting all the press in his 200th year, but there is another performer, even older, who celebrates: in 2012, Mr Punch, of Punch and Judy fame, is 350 years old, and Improbable, in revitalising the old showman’s tradition, has given him the best birthday present that can be imagined.

Last night was one of those occasions when I found myself looking forward to seeing the support band more than the main act. This wasn’t because Senegal’s sublime Orchestra Baobab haven't delivered a transportive heart-warming set of Cuban and soukous grooves every time I’ve seen them live. It was simply because Belgium-based Congolese rapper Baloji made Kinshasa Succusale - one of my favourite albums of last year.

Last Tuesday night saw the London Symphony Orchestra celebrating 20^th century English music under the baton of Antonio Pappano, launching proceedings with a stylish (and more than a little sexy) rendition of the dance suite from Thomas Adès’ Powder Her Face. Last night the LSO were back with Adès himself for an evening offering a rather more expansive tour through the composer’s work, pairing its dense orchestral textures with a selection of songs from Mahler’s Des Knaben Wunderhorn.