Plea for help ( last time ) nasty Baldwin SF grand treble. ( so-called "Resonators")

[gordon stelter]

Del, or somebody:
     Will you please inform me, or help me find
archived info, on dealing with that nasty
ringing/zinging/raspy sound coming from the treble
"Resonators" on this church's 5 year old Baldwin SF
grand? Its driving them ( and me ) utterly nutz.
    Sincerely,
    Gordon

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