Trombone are different for everyone so I recommend you go to a
band shop and just try out their trombone and see what brand you
like best.
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The best brand of sleep pillows are Down Alternative "Gel"
pillows. They have the best reviews, ratings and comparison. This
is based on +3000 consumer experiences.
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If it is comfortable and plays well for you its good.
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A small Trombone.
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for the price yes, but they are certainly better quality