Almost exactly a century after the Weimar Republic’s constitution took effect, English Touring Opera presents a show whose birth coincided with the Republic's untimely death. His third collaboration with the prolific, maverick playwright Georg Kaiser, Kurt Weill’s The Silver Lake (Der Silbersee) opened in three German cities (Leipzig, Magdeburg and Erfurt) just 19 days after Hitler had come to power in 1933.

When he arrived on the scene in the mid Noughties Mika – yes his name is Michael Holbrook – flew the flag for grandiose pop classicism. He had The Feeling as fellow travellers, and to an extent The Killers in their first wave of success and Muse entering their imperial phase channelled these same impulses. Now, of course the songwriting and production values of ELO, Queen, Abba, Wings, Hall & Oates are all good and noble things to aspire to.

Canadian playwright Hannah Moscovitch’s “refugee musical” – now there’s a phrase you don’t expect to write – is a treat. Harking back to the early 20th century pogroms of Eastern Europe, it’s darkly steeped in history, conveying the sorrows of leaving behind an old world as well as the slow, painful process of integration into a new one, in this case Canada.

The work isn't finished on Big, if this stage musical of the beloved 1988 Tom Hanks film is ever to, um, make it big. A Broadway flop in 1996 where it was among the last shows directed by the late, much-admired Englishman Mike Ockrent, the material finds a sweetness in its West End incarnation that eluded it Stateside.

Renée Zellweger already has strong musical cinema form, Her role as Roxie Hart in Chicago garnered her second Oscar nomination. However, playing and singing Judy Garland is a whole different ball game.

Where does music come from? That’s the vital question posed to Sergei Rachmaninoff in Dave Malloy’s extraordinary 2015 chamber work, as the great late-Romantic Russian composer – stuck in his third year of harrowing writer’s block – tries to relocate his gift. It comes from others and from himself; from past and present; from everything and nothing. It is ephemeral, and yet it is at the core of his very being.

William Finn and James Lapine’s musical – which combines two linked one-acts, March of the Falsettos and Falsettoland, set in late 1970s/early 1980s New York – picked up Tony Awards in 1992 for its book and score, and was nominated again in 2

As British summer really kicks in (umbrellas at the ready), our thoughts might turn fondly to the sunny Caribbean. Good timing, then, for the return of Lynn Ahrens and Stephen Flaherty’s 1990 musical set in the French Antilles.

Wisecracks can be profound. The late André Previn – who spent most of the period from his late teens to his mid-thirties working in film studios – once responded to a critic’s snub that the music of Korngold all sounded like Hollywood with the line: “No, Hollywood music all sounds like Korngold.”

Following a triumphant resurrection of Jesus Christ Superstar, now playing at the Barbican, the Park works its magic on another of Andrew Lloyd Webber and Tim Rice’s Seventies rock operas.