I cannot find any orchestra described. Revelation records the action for seven trumps. Paul says what will happen at the last trump to flesh.
Paul taught his converts the feasts of Israel. He would have taught them about the feast of trumpets and the 100 blowings and the last trump being the longest, blown for as long as the trumpeter could hold breath.
Don't know what to tell ya man...I can only repeat what God has given us in the scriptures...
Rev 8:6 And the seven angels which had the seven trumpets prepared themselves to sound.