Block-level synth switching
with_synth  synth_name (symbol)
Switch the current synth to synth_name but only for the duration of the do/end block. After the do/end block has completed, the previous synth is restored.
Introduced in v2.0
Example
 
  | # Example 1 | 
  | 
play 50
sleep 2
use_synth :supersaw
play 50
sleep 2
with_synth :saw_beep do
  play 50
end
sleep 2
play 50
 | 
# Plays with default synth
 
 
# Plays with supersaw synth
 
 
# Plays with saw_beep synth
 
 
# Previous synth is restored
# Plays with supersaw synth
 |