Possible Clues:

• From the New World symphony composer
• Czech 19th century composer
• 'Rusalka' composer
• Wrote from the new world, Victor and Oscar in dark organisation
• Typewriter keyboard format
• Alternative to a QWERTY keyboard
• Dark, sad, very oxygen-enriched creator of 4 26
• Antonín __, Czech composer known for his Slavonic Dances
• Famous Bohemian wanting vodka, shaken or stirred? That's about right
• Composer's vodka spilt across end of bar