WindWorks Trumpet Academy by Mystery to Mastery | Jim Campbell | Activity https://mysterytomastery.com/member-profile/jim-campbell/activity/ Activity feed for Jim Campbell. Sun, 12 Apr 2026 11:22:15 +1000 https://buddypress.org/?v= en-AU 30 hourly 2 8bdcd7fb18734728663c6365fa8df1b4 Jim Campbell started the topic Teeth opening distance in the forum WindWorks https://mysterytomastery.com/topic/teeth-opening-distance/ Thu, 05 Jun 2025 20:11:40 +1000 When we energize the lungs we ensure our teeth are two fingers separated. Do we keep this same size opening while we play after forming the aperture? Thanks for any guidance.

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