Dave Smith Instruments TETR4 Operation Manual

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Dave Smith Instruments TETR4 Operation Manual Manual pdf 36 page image

30Sequences do not have to be the same length, however, which makes for somevery interesting, less repetitive patterns, particularly when sequences are set toodd and even numbers of steps.1 2 3 412345 6 7 8 9Stepsv = step value; R = ResetDest. 1Dest. 2Dest. 3Dest. 410 11 12 13 14 15 16SequenceSequence one has an additional value, Rest, that appears in the list after Reset.Rest prevents the envelopes from being gated by the corresponding step, so arest in sequence one affects all four sequences. If the sequences are the samelength, rests will occur in the same place in all four sequences as they loop. Ifthe sequences are different lengths, the rests in sequence one apply to whateverthe current step happens to be in sequences two through four, resulting in a morerandom-sounding pattern (which can be really cool). In the following example,sequence one is 16 steps long and rests occur at steps 2, 6, 9, and 12. However,sequence two is only eight steps long, so rests occur at steps 2 and 6 the firsttime it plays through and then at steps 1 and 4—corresponding to steps 9 and 12in sequence one—the first time it repeats. As sequence two loops, the rests willcontinue in the same alternating pattern.1 2 3 412345 6 7 8 9Stepsv = step value; r = rest; R = ResetDest. 1Dest. 2Dest. 3Dest. 410 11 12 13 14 15 16SequenceProgramming the SequencerProgramming the sequencer is easy, but there are a few things to consider beforeyou start. Most importantly, what do you want the sequence to do and whatmodulation destinations will provide the results you’re seeking? For example, isthe sequencer going to control oscillator frequency? One sequence can controlthe frequency of both oscillators or one sequence can control oscillator 1 andanother sequence can control oscillator 2 for harmonies or countermelodies. Atypical application of the sequencer might have sequence one routed to thefrequency of both oscillators, sequence two routed to filter cutoff, sequence