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6. In­sane drum loop se­quenc­ing with Serum’s os­cil­la­tors and LFOs

Computer Music - - Make Music Now -

1 Serum’s LFO mod­ules en­able us to draw any LFO shape we like, so they can be used as step se­quencers. Let’s make a mul­ti­lay­ered drum loop: firstly, click Menu » Init Pre­set, then set all LFOs to Trig, so they re­trig­ger with ev­ery new note. Turn on Osc A, choose Analog_BD_ Sin as the wave, and tune Oct to -2.

2 As­sign LFO 1 to mod­u­late the Level of Osc A and Crs tune, draw the kicks into the LFO ta­ble as above ( Alt-click to snap to grid). Set LFO 1’s Rate to 1/2 and switch the CRS Pitch mod­u­la­tion to Unipo­lar via the ar­row in the Ma­trix panel. Fuzz things up by set­ting Warp mode to Quan­tize and as­sign­ing LFO 1 to mod­u­late WT POS and Warp Depth.

3 Now we’ll add a weird tonal snare sound into the mix: turn on Osc B, choos­ing the PWM Maths wave, and push the Oct tun­ing +3. Set LFO 2’s Rate to 1/2, and then draw the snare shape into the LFO ta­ble. To get the snare sound pump­ing, as­sign LFO 2 to mod­u­late the Level, Wt Pos and CRS tun­ing of Osc B.

4 Let’s add in some hi-hats to get things rolling. Head over to the Noise os­cil­la­tor and se­lect ARP Cir­cuit in the menu. Pan the noise slightly to the left to add some stereo con­tent, then draw rhyth­mic hi-hat shapes into LFO 3. You can add some swing to the hi-hats by de­lay­ing the sec­ond and fourth tran­sients a tiny bit off the grid.

5 Set LFO 3’s Rate to 1/4, and as with the kick and snare, as­sign it to mod­u­late the Level, this time of the noise os­cil­la­tor. For per­for­mance con­trol, as­sign a Macro con­trol (bot­tom left) to con­trol LFO 3’s Rate, so you can change the speed of the hi-hats with the turn of a knob.

6 For flavour, turn on the Fil­ter and choose the French LP fil­ter type, which packs a unique squeal­ing, dis­torted char­ac­ter. Turn on A,B, N, and S, so that all our os­cil­la­tors are routed through the Fil­ter. Ac­ti­vate Key­track, so the Fil­ter pa­ram­e­ters fol­low the key­board, then add some Pan for more stereo width.

7 Let’s mod­u­late var­i­ous Fil­ter pa­ram­e­ters for even more in­ter­est. Send LFO 2 to mod­u­late the fil­ter Cut­off (set to Unipo­lar in the Ma­trix) and Res­o­nance, to high­light the snare. Next, ac­ti­vate LFO 4, set Rate to bar, and as­sign it to the Fil­ter’s Drive and Mix pa­ram­e­ters. Draw in a shape here that adds some rhyth­mic dis­tor­tion to the loop.

8 Time to process our loop! Head to the FX panel, ac­ti­vate the Dis­tor­tion mo­d­ule in Tube mode, and add a lit­tle Pre LP fil­ter­ing to roll off the harsher high fre­quen­cies. Next, push that Drive up and feel that crunchy good­ness! Let’s also add an EQ into the FX chain and boost the low end with a shelv­ing fil­ter, un­til we get a nice bit of low-end rum­ble.

9 Add a De­lay into the ef­fects chain af­ter the EQ, fil­ter­ing the De­lay out­put to keep things sub­tle. Now as­sign the hi-hat LFO ( LFO 3) to mod­u­late the Mix, and give the loop some shuf­fling de­lay vari­a­tion. Fi­nally, add in a wide Plate Re­verb at the end of the FX chain, and give the snare some width by set­ting LFO 2 to mod­u­late the Mix.

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