diff --git a/interface.scd b/interface.scd
index a1aaebb..279e862 100644
--- a/interface.scd
+++ b/interface.scd
@@ -24,9 +24,22 @@ OSCdef.freeAll;
 
 ~quantspeed = { |v| 2.pow((v * 4 + 0.5).round - 5) };
 
+
+~quantharmonics = {
+	arg f, quantise=0;
+	if(quantise != 0, {
+		var fraction = f.asFraction(7, false);
+		fraction[0] / fraction[1];
+	},
+	{ f }
+	);
+};
+
+
 // control ganging is hella laggy, do it in TouchOSC
 
 
+
 ~setspeed = { | track, v |
 	var speed, qv = if(~speedquant > 0, { ~quantspeed.value(v) }, { v });
 	speed = qv / ~buflen;
@@ -94,6 +107,15 @@ OSCdef.freeAll;
 
 ~to.button('/grains/quant',   0, { |v| ~speedquant = v });
 
+~to.button('/grains/metronome', 0, { |v|
+	if( v == 1, {
+		~bps = ~beatsperbar / ~buflen;
+		~tc.tempo_(~bps);
+	});
+
+	~metromix.set(\amp, v)
+});
+
 
 // Page 2: track
 
@@ -110,6 +132,9 @@ OSCdef.freeAll;
 ~to.button('/track/slope',   0,                          { |v| ~granulator.slope_(v) });
 
 ~to.button('/track/chorus', 0,                            { |v| ~granulator.chorus_(v) });
+~to.slider('/track/harmonics', 2, TouchOSCScale(0.5, 3),     { |v|
+	~granulator.harmonics_(~quantharmonics.value(v, 1))
+});
 ~to.slider('/track/detune', 0, TouchOSCScale(0, 0.059),   { |v| ~granulator.detune_(v) });
 ~to.slider('/track/pitch', 0, TouchOSCScale(-2, 2),       { |v| ~granulator.pitch_(v.round) });
 
@@ -134,6 +159,7 @@ OSCdef.freeAll;
  	~to.v_('/track/slope',  ~granulator.slope);
  	~to.v_('/track/back',   ~granulator.back);
  	~to.v_('/track/chorus', ~granulator.chorus);
+ 	~to.v_('/track/harmonics', ~granulator.harmonics);
  	~to.v_('/track/detune', ~granulator.detune);
  	~to.v_('/track/pitch',  ~granulator.pitch);
  });
@@ -186,52 +212,6 @@ OSCdef.freeAll;
 ~to.slider('/lfos/cfreq',  0.5,TouchOSCScale(0.1, 200),   { |v| ~lfoc.set(\freq, v) } );
 ~to.slider('/lfos/camp',  0,   TouchOSCScale(0, 1),       { |v| ~lfoc.set(\amp, v) });
 
-// metronome code here is a bit gross but easier
-
-~beatsperbar = 4;
-~bps = ~beatsperbar / ~buflen;
-~tc = TempoClock.new(~bps);
-
-SynthDef(\metronome, {
-	arg out=0, amp=1, pan=0, filter=1000, atk=0.01, rel=0.1;
-	var sig, env;
-	env = EnvGen.kr(Env.perc(atk, rel, amp), doneAction: Done.freeSelf);
-	sig = HPF.ar(WhiteNoise.ar(), filter);
-	Out.ar(out, Pan2.ar(sig * env, pan));
-}
-).add;
-
-~metrob = Bus.audio(s, 2);
-
-~metromix = SynthDef(\metromix, {
-	arg in=1, out=0, amp=1;
-	Out.ar(out, amp * In.ar(in, 2));
-}).play(s, [\in, ~metrob, \out, 0, \amp, 0]);
-
-
-
-
-~metronome = Pbind(
-	\instrument, \metronome,
-	\dur, 1,
-	\amp, 0.5,
-	\pan, 0,
-	\out, ~metrob
-).play(~tc);
-
-
-~to.button('/grains/metronome', 0, { |v|
-	// reset tempo when turning metronome on
-	if( v == 1, {
-		~bps = ~beatsperbar / ~buflen;
-		~tc.tempo_(~bps);
-	});
-	// FIXME
-	~metromix.set(\amp, v)
-
-});
-
-
 
 )
 
diff --git a/main.scd b/main.scd
index ce672c2..8564112 100644
--- a/main.scd
+++ b/main.scd
@@ -11,6 +11,23 @@ Server.killAll;
 (
 Routine.run({
 
+	~usbinput = 2;
+	~usbinput1 = 2;
+	~usbinput2 = 3;
+
+	~bpm = 55;
+	~bps = ~bpm / 60;
+	~beatsperbar = 4;
+	~buflen = ~beatsperbar / ~bps;
+
+	[ "bpm", ~bpm ].postln;
+	[ "buffer length", ~buflen ].postln;
+
+	~tc = TempoClock.new(~bps);
+
+
+	~touchosc_ip = "192.168.0.209";
+
 	("./synths.scd").loadRelative;
 	Granulator.init(s);
 	s.sync;
@@ -20,11 +37,11 @@ Routine.run({
 	s.sync;
 	("./effects.scd").loadRelative;
 	s.sync;
-	~touchosc_ip = "192.168.0.209";
+	("./sequencer.scd").loadRelative;
+	s.sync;
 	("./interface.scd").loadRelative;
 });
 )
 
 
 
-
diff --git a/sequencer.scd b/sequencer.scd
new file mode 100644
index 0000000..ce93b85
--- /dev/null
+++ b/sequencer.scd
@@ -0,0 +1,34 @@
+
+(
+
+
+SynthDef(\metronome, {
+	arg out=0, amp=1, pan=0, filter=1000, atk=0.01, rel=0.1;
+	var sig, env;
+	env = EnvGen.kr(Env.perc(atk, rel, amp), doneAction: Done.freeSelf);
+	sig = HPF.ar(WhiteNoise.ar(), filter);
+	Out.ar(out, Pan2.ar(sig * env, pan));
+}
+).add;
+
+~metrob = Bus.audio(s, 2);
+
+~metromix = SynthDef(\metromix, {
+	arg in=1, out=0, amp=1;
+	Out.ar(out, amp * In.ar(in, 2));
+}).play(s, [\in, ~metrob, \out, 0, \amp, 0]);
+
+
+~metronome = Pbind(
+	\instrument, \metronome,
+	\dur, 1,
+	\amp, 0.5,
+	\pan, 0,
+	\out, ~metrob
+).play(~tc);
+
+
+)
+
+
+
diff --git a/synths.scd b/synths.scd
index 9fdb0dd..9a8a294 100644
--- a/synths.scd
+++ b/synths.scd
@@ -1,12 +1,5 @@
 (
 
-~usbinput = 2;
-~usbinput1 = 2;
-~usbinput2 = 3;
-
-~buflen = 4.0;
-~beatsperbar = 4;
-
 SynthDef(\pos_sine, {
 	arg out, speed=1;
 	Out.kr(out, 0.5 + SinOsc.kr(speed * 0.5, 0, 0.5));