For future reference, the Lxx command is the legato command. Placing it next to a note will cause the pitch to slide to that value from the previous value at speed xx. Removing the instrument value is done to prevent the note from riggering again, which is useful if you don't want the ADSR to retrigger. Sometimes you'll want a retrigger, however, so don't think you are required to remove this.
In most cases you'll hear the difference and you can simply pick what sounds best. Deleting the instrument value and leaving out the Lxx command will give you a sort of hammer-on effect. Ie, there will be a single 'trigger' and the pitches will switch instantly.
There is a lot of flexibility that can be had with the Lxx, Pxx and placement of instrument values.
Last edited by jefftheworld (Jan 24, 2013 9:47 pm)