It’s a vocal week, with three excellent singers stretched between two Midland cities, and an expansive range of vocal jazz well represented.

In Birmingham tomorrow night, the CBSO Centre bill is shared by Claire Martin and Sara Colman.

Claire Martin is one of our most enduring singers – and I mean that in a wholly complimentary sense. She has an astonishing 15 albums to her name, not including two compilations, and has made the transition from new kid on the block to a kind of keystone of modern British jazz singing. She has an OBE, after all.

And she has done it all with a sharp sense of style and a firm attention to her art.

She is possibly our finest interpreter of the Great American Songbook, while not being averse to adapting an EST song.

Her latest album, Too Much In Love To Care, was recorded in New York with Kenny Barron on piano, and she has played the top venues there, including The Algonquin Hotel and the Lincoln Center.

With her tomorrow will be her superb regular collaborators Gareth Williams on piano and Laurence Cottle on electric bass with Ian Thomas in on drums.

Sara Colman studied at Birmingham Conservatoire before there was a jazz course and has developed a three-pronged career in singing, composing and teaching, all of which she is exceptionally good at.

Her most recent album is called Ready and is a rich mix of jazz standards, adaptations of rock and folk tunes, and original material. She has more recently been studying song-writing in greater depth.

So I think we can expect a couple of new tunes in there with the familiar favourites tomorrow. Sara will have her long-time rhythm team of Ben Markland on bass, and Carl Hemmingsley on drums, with Malcomb Edmonstone in on piano,.

Both singers love improvisation and encourage it, so if you prefer instrumental jazz to the vocal stuff, you will not be short-changed.

This double bill is a Jazzlines event, curated by Sara Colman, and it starts at the CBSO Centre in Berkley Street at 8pm.

More information and tickets at www.thsh.co.uk

On Monday evening at Warwick Arts Centre, is a vocalist of a different but equally absorbing kind.

Susanna Wallumrod is an extraordinary singer as anyone who has ever heard her version of Dolly Parton’s Jolene will testify. Since her work with the one-man Magical Orchestra and her album of rock covers – which included similarly compelling versions of JoyDivision’s Love Will Tear Us Apart and AC/DC’s It’s A Long Way To The Top, Susanna as concentrated on her own compositions and her latest release, Wild Dog is all her own songs.

She has also collaborated with alt country singer Bonnie Prince Billy.

Susanna, on vocal and piano, brings Helge Sten on guitar and Erland Dahlen on drums to the suitably intimate Warwick Arts Centre Studio on Monday at 7.45pm. More details and booking at www.warwickartscentre.co.uk