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so what is a sequencer well there's lots
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of different variations from the 60s to
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now but basically all of them do the
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same thing in that they record notes
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that you want to be played and then when
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you press a button it plays those notes
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in the order you played them where
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things change are that some of the
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really early analog sequencers you'll
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see that you have a bunch of horizontal
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knobs with incandescent light bulbs
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under each knob and it steps through
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them and you basically are setting the
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knobs to the voltage that you want that
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will make the oscillators go to the
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pitch that you want and then it will
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cycle through those 8 or 16 or more
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knobs and that is an analog sequencer
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and in modern times you can get an
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analog sequencer like something that's
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in the d fan in the top row there with
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eight knobs and in the late 80s i had a
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roland mc500 micro composer which i
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really liked and you could simply play
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your sequences into it or type your
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sequences into it all of that used to be
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able to store onto a floppy modern
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sequencers a lot of them are built into
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the keyboard so here i have the modal
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cobalt 5s synthesizer and it has a 512
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note sequencer
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and every one of those notes can have
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five notes at once so it's very powerful
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you can also have in each of those steps
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up to four knobs can be moving at each
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of those steps as well and another
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really important thing about a sequencer
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besides whether it's an analog sequencer
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or a digital sequencer is whether it
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records in real time or if it's a step
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sequencer a real-time sequencer means
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you can just play the way you want to
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play in the style you want to play at
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the speed you want to play and when you
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play back it will play something very
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very close to what you played it'll be
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microscopically different because of
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resolution but
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to your ear you won't be able to notice
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the difference
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[Music]
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and now i'm going to play the sequence
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back and notice that i can change the
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tempo because the sequencer didn't
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record the sound of me playing it
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recorded the notes of what i played and
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it's playing the notes back so i can
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play them back at any tempo i want i'll
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start medium and then speed it up
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so now i'm going to do a different way
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which is called step recording
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some keyboards give you a choice of
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real-time recording or step recording a
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lot of them only give you step recording
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and the beauty of step recording is you
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don't have to be able to play in time
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you just hit each note or each
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collection of notes and then it steps to
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the next step so now this time i have it
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set up in step time and so if i hit
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record
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i'm not actually recording i can record
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in this first step any number of notes
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from 1 to 5 because this is a five note
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sequencer so i'm just gonna pick a note
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[Music]
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so now as i play back this step recorded
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sequence it's going to play back very
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evenly with exact divisions of time that
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i picked in advance
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[Music]
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[Music]
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and as you can see changing the tempo
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doesn't do anything else to the song it
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doesn't change the pitch it doesn't
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change the tonality of it or anything
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because it's not the sound that i
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recorded it's what notes i press down
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that's recorded and when i play that
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step sequence back it plays those notes
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back into the sense which plays the
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notes again which is why they don't
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sound different depending on the tempo
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in the last 25 years a really big
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development of sequencing of course is
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the digital audio workstation that's
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where you have an application on your
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computer or smart device where not only
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can you record all of the notes in
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either real time or step time but then
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you can see them on a screen either
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written as notes or these things called
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piano roll where you see them as little
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ovals that show each note and the
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duration and you can click on them and
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drag them you can change anything about
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them you can cut copy and paste and
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not only do you have midi going with
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those notes but you can have tracks of
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audio that line up underneath your midi
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and so you can edit audio you can edit
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midi at the same time while you're
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editing effects so that's a digital
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audio workstation or a daw if you have
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any further questions about the many
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kinds of sequences that we have
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available today please contact your
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sweetwater sales engineer my name is
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daniel fisher thank you very much for
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watching
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