Moog Music Recording Equipment MF-105 Manual Do Utilizador

SEQUENCERS and PATTERN GENERATION

     A Sequencer is used to generate reoccurring rhythmic patterns, 

often by triggering sequences of notes in synthesizers or drum 

machines.  However sequencers can be used for purposes other 

than triggering notes - they can be set up to create reoccuring 

changes of timbre as well. Vintage sequencers were typically 

designed so there were a certain number of “steps”. The term 

“step” refers to the individual components of a pattern. For 

instance in a bar of music in 4/4 you have four quarter notes. If 

the rhythmic activity is no more complicated than quarter notes, 

this would correspond to four steps. In many vintage or analog 

sequencers, a sequencer typically had eight or sixteen steps 

available to build a pattern. 

    In its simplest form, as a sequencer plays back its steps, each 

step can be programmed to send a trigger signal - or not - a step 

can be passed over like a musical rest. The trigger signals can then 

be used to trigger envelope generators according to the way each 

step is programmed - creating a rhythmically reoccurring pattern.

      The MuRF’s Animation contains 8 simple sequencers, one for 

each filter, each capable of triggering an Envelope Generator that 

shapes the volume of the filter.   

ANIMATION

     The MuRF’s ANIMATION module is designed as a means of 

automatically turning the levels of the individual filters up and 

down, using envelope generators, according to a pre-programmed 

pattern.  The ENVELOPE control morphs through different 

envelope shapes as you turn it, creating effects that are highly 

rhythmic in nature, or are swirling and ethereal. The RATE 

control sets the speed of  the pattern. The patterns, selected by the 

PATTERN selector rotary switch in conjunction with the Bank 

slider switch,  have been selected to provide a surprisingly wide 

variety of rhythmic timbral effects. There are a total of 24 patterns,