This invention provides apparatus and methods for seasoning stringed musical instruments. For stringed instruments having a bridge, the apparatus comprises an electric vibration generator attached to a bridge cradle, the bridge cradle being sized and configured for detachable attachment to a bridge of the instrument, the bridge cradle comprising a main body portion sized and configured to be placed upon the bridge in sufficient contact therewith to permit the transfer of vibration generated by the vibration generator into the bridge of the instrument. For stringed instruments having a sound hole, the apparatus comprises an electric vibration generator attached to a vibration cradle, the vibration cradle being sized and configured for detachable attachment between the body and strings of the instrument, the vibration cradle comprising a base sized and configured to be placed in sufficient contact with the sound hole to permit the transfer of vibration generated by the vibration generator into the body of the instrument.