Here is an example of a Two Octave, ascending and descending sliding Glissando (or Extended Portamento) using GOS: Two Octave Gliss mp3
Here\'s How It Was Done:
Load these instruments for the glissando:
MIDI Channel 1 = Vln Slides Comb. UpDn MW KS (C1-C#1)
MIDI Channel 2 = 2nd Vln Grand Detache
Here is the MIDI file that was used for this tutorial: Two Octave Glissando MIDI Two Octave Glissando MIDI
It uses a chromatic scale with overlapping notes to accomplish the effect using the Slides Toolbox. The ascending scale uses the up slides and the descending scale uses the downslides. Keyswitches are placed at the beginning and middle to choose the slide direction. Mod wheel data selects the interval (minor 2nd, Major 2nd, or Major 3rd). This example uses the minor 2nd. The first note is slightly reinforced with the 2nd Violin Grand Detache. The mp3 file adds some reverb to the mix.
The following Screenshot (done in Logic) shows the tracks, port-channel assignments, instrument names, and Matix display for each of the tracks. It also displays the note data and keyswitches in alignment.
Here is the Logic Environment File of the above for those who use Logic.
Thanks to Tom Hopkins for providing these instructions. Let me know if you find these tutorials instructive and we\'ll continue to post more.