RedTrk a sort of timeline - slave track

RedTrk is controlled by the master (RedMst).  each track must have a name, an item to play and an array specifying when to play (sections when active).

see also [RedMst] [RedSeq] [RedTrk2]

*new(key, item, sections)

create a new track.  it automatically adds itself to RedMst and gets removed with RedMst.clear.

key - a unique name for this track (Symbol).

item - some object that responds to play and stop (eg Pbind, Tdef, Routine).

sections - indices for which sections this track is active (Array).

can also be inf and then this track is always active.

<key

name of track (Symbol).

<>item

object to be controlled (eg Pbind, Tdef, Routine).

<>sections

which sections this track is active (Array).

<player

object returned by item after .play (eg Synth, EventStreamPlayer).

<isPlaying

boolean

add functions to the following if you have special classes that can not be controlled with .play/.stop,

or classes that have argument keywords that does not match 'clock' and 'quant' (eg clk for clock),

or classes that need to free resources on clear (eg free buffers).

<>*playDict

dictionary of custom play functions.  if class not found here then defaults to the .play message.

<>*stopDict

dictionary of custom stop functions.  if class not found here then defaults to the .stop message.

<>*clearDict

dictionary of custom clear functions.  if class not found here then defaults to the .free message.

the following methods are used by RedMst.  not very useful on their own.

play

stop

clear

//--

RedMst.clear

RedTrk(\t1, Pbind(\dur, 0.8), [0]) //create a track

RedTrk(\t1).item

RedTrk(\t1).sections //when to be active

s.boot

RedMst.play //controller starts track on next quant beat

RedTrk(\t2, Pbind(\freq, 880, \dur, 0.5), [0]) //add another track while playing

RedMst.goto(0) //have to restart section to activate new track

RedMst.tracks //current tracks

RedTrk(\t1, Pbind(\freq, 660), [0]) //overwrite first track while playing

RedMst.goto(0) //have to restart section to hear the change

RedMst.stop //stop all tracks on next quant beat

RedMst.clear //remove tracks from master

//see RedMst helpfile for more examples