What piece was composed in 1937 for the American Bandmasters Association and has a melody similar to Green Bushes?
Green Bushes Green Bushes is an English folk song (Roud #1040, Laws P2) which is featured in the second movement of Ralph Vaughan Williams' "English Folk Song Suite", in Percy Grainger's "Green Bushes (Passacaglia on an English Folksong)", and in George Butterworth's "The Banks of Green Willow". The melody is very similar to that of the "Lost Lady Found" movement of Percy Grainger's Lincolnshire Posy, and to The Cutty Wren.
So Rare "So Rare" is a popular song published in 1937 by composer Jerry Herst and lyricist Jack Sharpe. It became a hit for Jimmy Dorsey in 1957.