This is the original Helen O'Connell version of Saturday Night from her "Here's Helen" album, as recorded with the Marion Evans Orchestra. Please note that this is not a transcription, it's the real deal, and a fine piece of American musical history. The chart is a high quality up tempo swinger that highlights both the vocalist and the band. The reeds are written AATTB, with no sax doubles. The vocal key is Ab modulating to Bb.