Reporting question for Capacitor - Orange Drop, 100V, Polyester

Product:
Capacitor - Orange Drop, 100V, Polyester

Question:
I have an Aria Acoustic /electric guitar, with a passive piezo under saddle, 1 volume & 1 tone knob, and a 147K cap on the tone knob. Q #1) Is the 147k value the same as .047uf cap? Q #2) with the passive piezo being VERY bright, what cap value / mod would you recommend to "tame" the piezo. Using a Bags DI in the signal chain helps, and makes the tone pot very usable.