Blue Plate Special, the long-running noontime radio show on WDVX has a big dose of bluegrass on the program this week.

Today’s show (9/3) features Gold Heart a terrific young family bluegrass group from northern Virginia. The band is made up of the singing Gold sisters, Analise, Jocelyn and Shelby, and their dad Trent along with Zach Gilmer. Their harmony is emblematic of why family singing groups have had such an exalted place in the history of bluegrass, and they play with intensity and passion.

On Thursday (9/4) the raucous, jam-grass Hackensaw Boys will perform, followed by bluegrass bad boys Cadillac Sky on Friday. Expect C-Sky to preview material from their new CD, Gravity’s Our Enemy, released in August on Skaggs Family Records.

Blue Plate Special originates from Knoxville, TN, where it airs weekdays at noon (ET) on 102.9 and 105.9 FM, and via the WDVX streaming broadcast over the Internet. No audio archives, so be sure to listen live.

The Hackensaw Boys have been sneaking around the edges of several acoustic/Americana genres since their formation in Charlottesville, VA seven years ago. Their sound is raw and raucous, frenetic and unfocused, and bursting with energy and passion. It’s part jug band, part vaudeville, part old time string band – not unlike the sort of sound popularized of late by The Old Crow Medicine Show.

The name is derived from two slang expressions that are not always used in a complimentary fashion about string musicians – hack and saw. It does, however, nicely capture the irreverent approach they take to the music, and their sound – plus the look and the vibe – has won them a loyal audience.

Look Out is the name of their newest CD, due for a June 19 release on Nettwerk Records. It’s their fifth full length CD, and their second with Nettwerk. The instrumentation is as varied as the Hacks’ sound – accordion, banjo, harmonica, guitar, fiddle, spoons, and of course, saw.

Members perform with colorful stage names, and include Jesse Fiske (Baby J.), Jimmy Stelling (The Kooky-Eyed Fox), Robert Bullington (Mahlon), Ferd Lionel Moyse, IV (Four), Ward Harrison (Cousin Spits) and Justin Neuhardt (Salvage).

Two tracks from the new CD are available on the band’s MySpace page.