All that can presently (February 2016) be gleaned about by internet searching is that Ralph Rainger is the one-off composer of Pianogram (1929) published by Robbins Music Corporation, New York, USA.
Surfers are welcome to contribute information about this composer.
This list is arranged in chronological order and contains 1 work by Ralph Rainger. It does not claim to be complete and represents only the number of items located. Key: Electronic Resource Items