Jo Whiley is to take over the evening show on Radio 2, with Mark Radcliffe and Stuart Maconie moving to afternoons on BBC 6 Music.
Whiley's weekend afternoon slot on Radio 1 will be filled by Huw Stevens, with the changes all taking place from 4 April.
Jo will be on Radio 2 8-9.30pm Monday to Wednesday. Bob Shennan, Controller of Radio 2 and 6 Music, says: "Jo's at the top of her game and is a first-rate broadcaster with a great knowledge of music. I'm looking forward to her bringing her own brand of presenting to the Radio 2 evening schedule."
Jo Whiley says: "I've loved working at Radio 1 for the past 17 years. It's given me opportunities I could only have dreamt of – Coldplay's first Live Lounge, Arctic Monkeys covering Girls Aloud's Love Machine, Jay Z performing live in my own lounge – I've even measured the distance between Bono's nipples live on air… don't ask."
Jo added: "As well as supporting my love of music, Radio 1 have also supported and accommodated me bringing three further children into the world, something, as a woman, I will always be grateful for. I love Radio 1 and all my friends there, I'm excited to be joining Radio 2 and I'm proud to work for the BBC."
Ben Cooper, Deputy Controller, BBC Radio 1, says: "Jo has been an amazing ambassador for Radio 1. From the Britpop days of the Evening Session, via the muddy fields of Glastonbury, to incredible performances in the Live Lounge, her passion for breaking new bands has been second to none."
Jo will continue to present Radio 2's In Concert programme every Thursday evening from 8-10pm, featuring live performances and a round-up of the week's music gigs.
Mark Radcliffe will launch a new weekly show on Radio 2 on Tuesday nights from 11-12midnight, featuring a distinctive and eclectic selection of new, and classic music from Mark's own record vaults.
The Radcliffe and Maconie Show will shift to 6 Music to broadcast from 1-4pm each weekday. Nemone will move from her weekday lunchtime slot to launch a new 6 Music weekend breakfast show, which will be an independent radio production.
Paul Rodgers, Station Editor, BBC Radio 6 Music, comments: "I'd like to thank Nemone for fronting the daytime show with such passion and verve and look forward to her new weekend breakfast show. Mark Radcliffe and Stuart Maconie's legacy in music broadcasting allied with their ongoing curiosity in new music is a perfect fit for 6 Music, enhancing the station's capacity to put today's alternative music into context by exploring its heritage."
Radcliffe says: "Moving to 6 Music is a wonderful opportunity for Stuart and I to be part of the digital radio revolution and also the establishment of MediaCityUK in Salford. We feel like we have signed up to the future in a big way. The music policy of 6 is right up our street with its blend of heritage tracks and emerging new talent."
Maconie will continue with his existing 6 Music shows – Freak Zone (Sun, 6-8pm) and Freakier Zone (Sat 12midnight-1am).
Stuart comments: "6 Music provides a priceless service to its legions of fans, and I'm happy to be joining the merry bandwagon of joy. The usual inane banter will remain, the only difference will be the hour – let there be light!"
Stuart has also won a new commission to present an authored story of pop in a series of documentaries for Radio 2, to broadcast in 2012.
New-music presenter Huw Stevens, who's currently on Wednesday nights on Radio 1, will take over Jo's shows. He's been with Radio 1 since 1999 when he fronted the Nations output for Wales at the age of just 17.
Ben Cooper says: "Huw is loved by artists and listeners alike. His ability to introduce you to new music, as well as make you smile, will make his new weekend show a must listen."
Huw told us: "I love presenting on Radio 1 and can't wait to present my own weekends show. Taking over from Jo Whiley is a real honour. She's a brilliant broadcaster and an inspiration and I hope to continue with Jo's enthusiasm and love for music on the show. My current shows give me the chance to dig deep and champion exciting emerging music so I look forward to adding new sounds to weekend afternoons."
Matt Edmondson will take over Huw’s Wednesday 9pm-10pm slot with a brand new exciting show. Matt recently covered Sara Cox’s Radio 1 Sunday show while she was on maternity leave and is a regular entertainment commentator on Fearne Cotton’s Radio 1 show.