Catch singer/cultural worker, journeyman electrician, and labor activist Pam Parker and jazz guitarist Michael Raitzyk on this month's Labor [email protected] on WPFW 89.3FM tonight from 5 to 6pm, hosted by Katea Stitt. Parker has performed at union conferences, rallies and protests for many years, and Raitzyk has been one of the top jazz guitarists in the Baltimore-Washington area.