For broadcasting legend Bob Harris the event on Saturday, April 17 will offer the chance to hear some of the songs in their completed form, having acted as producer on unreleased versions back in the flared-trousered 1970s.
Talking on the phone, t
he soft-voiced Harris said he was delighted with what Harrogate band Wally had done with the final track on Montpellier, their first new album in 36 years.
"I helped record Giving in the mid-Seventies but for some reason it didn't make it on to the record at the time. It's a different version they've done now, more modern, but it's a brilliant song.
"I've always loved the sound combinations in the band, the variety of instruments. They always create lovely soundscapes."
Wally fans are in for an even bigger treat this time round than last year's triumph at the Royal Hall with two full sets expected from original members Roy Webber (lead vocals and guitar), Paul Middleton (pedal steel and bass), Pete Sage (violin), Roger Narraway (drums), Nick Glennie-Smith (keyboards) plus two recent recruits in the shape of guitarist and producer Will Jackson and Frank Mizen, who plays a multitude of instruments including pedal steel, banjo and bass.
Excitement is already building for the show, only the second time all the surviving members have played together since the days Harris would juggle co-producing Wally for famous label Atlantic Records with presenting The Old Grey Whistle Test on TV and hosting his own show on Radio 1.
Despite a cancer scare a few years ago which has led to him becoming a champion for charity, Harris remains as committed as ever to good music, and even busier than in the days of Wally's flirtation with fame. The long hair and beard may have gone, but Harris chose the records he wanted to play on air then and he still does today on his Radio 2 shows.
The freedom the BBC has given him to play the music he loves is something he's never experienced anywhere else in his distinguished and varied broadcasting career, Harris says.
"In Britain the BBC seems to be coming in for a knocking right now but it's one of the country's jewels in the crown. Step outside the UK and you find the BBC is held in high regard wherever you go.
