Oehler system
- The Oehler system (also spelled Öhler) is a system for clarinet keys developed by Oskar Oehler. Based on the Müller system clarinet, the system adds tone holes to correct intonation and aco
Oehlenschlager Bluff
- Oehlenschlager Bluff (75°3′S 136°42′W) is a steep rock bluff overlooking Hull Glacier from the north. It marks the southwest extremity of Erickson Bluffs and McDonald Heights in Marie Byrd La
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