| OBA 6A-I/II State Championship | |
| Broken Arrow | |
| 10/28/2917 | |
Oklahoma Bandmasters Association State Championship for classes 6A1 and 6A2. Prelim awards per class, top 12 in finals, BOA-style judging and caption awards | |
| Oklahoma Bandmasters Association | |
| okbandmasters.com | |
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