If one were to use different voices for the horn when in treble or bass clef, one could assign the voices to different (HALion) slots (MIDI channels) and apply the transposing expression map only to the voice used for bass clef.
If one were to use different voices for the horn when in treble or bass clef, one could assign the voices to different (HALion) slots (MIDI channels) and apply the transposing expression map only to the voice used for bass clef.