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Glasgow: FestivalThis year's Celtic Connections features music ranging from bluegrass to reggae, rock to folk and all points in between.

Acts featured include Youssou N'Dour, Nanci Griffith, Dr John (pictured), Michael Nyman, James Yorkston, Judy Collins, Kate Rusby and Sly 'n' Robbie. Various venues around Glasgow. January 15th-February 1st. www. celticconnections.com.

InstallationSound artist Martine H Crispo is in residency at the CCA with an interactive installation project focusing on the sounds produced by DIY electronic products and children's toys. 350 Sauchiehall Street. Until January 9th. www.cca-glasgow.com.

Exhibition Impressionism and Scotlandfeatures more than 100 works by artists such as Monet, Manet, Degas, Whistler, Van Gogh and the Scottish colourists. Kelvingrove Art Gallery Museum, Argyle St. Until February 1st. www. glasgowmuseums.com.

London

TheatreJonathan Kent's new National Theatre production of Oedipus the Kingfeatures Ralph Fiennes in the title role. Until January 4th. South Bank. www. nationaltheatre.org.uk.

ExhibitionAn exhibition of the cartoon work of The New Yorker'sSaul Steinberg is at the Dulwich Picture Gallery, Gallery Road, SE21. Until February 15th. www.dulwichpicture gallery.org.uk.

Amsterdam

Exhibition Caspar David Friedrich: German Romantic Landscapefeatures assembled landscapes by the artist that highlight a much wider view of his painterly world. Hermitage Amsterdam, Nieuwe Herengracht 14. Until January 18th. www.hermitage.nl.

RetrospectiveThe Leipzig School features in a major retrospective. Artists displayed include Peter Busch, Matthias Hoch, Neo Rauch and Matthias Weischer. CoBrA, Sandbergplein. Until January 11th. www.cobra-museum.nl.