LONDON.- The Holst Birthplace Museum in Cheltenham has acquired a unique and intriguing drawing of the Cheltenham-born composer Gustav Holst by the artist Sir William Rothenstein (1872-1945), with help from the MLA/V&A Purchase Grant Fund, independent charity The Art Fund, The Trafford Memorial Fund and a private donation. The pencil drawing, which is signed and dated W.R. 1921, is at first glance quite an unflattering portrait of the composer. It shows him somewhat baggy-eyed and saggy-chinned; he appears to be balding and gazes out into the distance, wearily. He looks less the distinguished composer of one of the most popular and critically-commended pieces of his generation, and more the scruffy, scrabbling artist, seeking success. However when it is considered that in 1921 Holst was at the very height of his fame because of The Planets, and moreover disliking all the stress