Krips, Mahler, ADLER, and OTTO are all conductors from Austria. Krips was a conductor and composer who was active in the early 20th century and is known for his interpretations of the works of Beethoven and Mozart. Mahler was a late-Romantic composer and conductor who is best known for his symphonies. ADLER was an Austrian conductor and composer who was active in the late 19th and early 20th centuries. OTTO was an Austrian conductor and composer who was active in the late 19th and early 20th centuries and is known for his operas.