John Mayer served as a sounding board. He does not have a sounding board. There is an eighteenth-century pulpit and sounding board. Reville became Hitchcock's closest collaborator and sounding board. These tines are held down to the sounding board by two bolted crossbars. Margaret served as a sounding board for Gordon's pursuit of better government. The single baluster and sounding board are the only original interior appointments. The faculty senate serves as the sounding board for the more than 2,261 faculty members. Dan and Johnny often used Lily as a sounding board whenever they had a problem. He is a spokesperson for his subjects, a sounding board for their public voices. But they transfer their vibrational energy to the sounding board at significantly different rates. The vocal resonator is not a sounding board comparable with stringed instruments. She acts as a sounding board for Paul's doubts about his own motives and abilities. May was Walter's sounding board and close advisor throughout his public life. These letters are a sounding board for the developing ideas brewing in Modigliani's mind.