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notice how the note needs to be passed in as value (argument), and not embedded as a variable, because by the time the PLAY NOTE block would evaluate the variable in a new thread, it might already have changed to another value.

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KBgAAH6CYJECBAgIAA+wECBAgQIBAICHCAbpIAAQIECByxcQFpoRMBzwAAAABJRU5ErkJggg==If notes are just numbers, we can use a FOR loop to play an ascending sequence. Notice how there are 12 steps before the same notes repeat but at a different pitch. That's called an "octave", because musicians can't count ;-)We can use the NUMBERS block to get some numbers, and play them gack using a FOR EACH loopLet's explore Hyperblocks! Instead of a list of absolute numbers we can have a list of intervals and offset (transpose) it against a "key".What if instead of ascending in single steps we want to ascend in double, triple or quadruple steps, and how would that sound?Try our new PLAY CHORD block on evenly spaced intervals. Sounds kinda spacey, doesn't it?Now we can transpose that chord the same way we transposed a single note before. Do all those chords sound "right" to you? Find out which ones sound like the belong together!... and play them back: We just discovered the major scale! Notice how the scale has 7 (!) notes, and then it repeats itself at a different pitch. So, *that's* why musicians call it an "octave" ("octo" = Latin for 8). A musical scale consists of 7 individual notes, it is also called "heptatonic" ("hepta" = Greek for 7)... and play them back: We just discovered ANOTHER scale, made up of 5 notes. That scale is called "pentatonic" ("penta" = Greek for 5). The pentatonic scale has an amazing quality which musicians love: You can play any of its notes to any chord in a song, and it always sounds "right" (because it's the intersection of those choes, duh!). That's extremely handy, because you don't even need to concentrate or "feel" any music whe you're improvising using the pentatonic scale, you just play any of its five notes randomly whenever you feel like it for as long as you like!this part introduces some rhythm, also called "phrasing". Try out your own!Bass"Melody", this is where we use the pentatonic scale34harmonymore chord progressions to check out, try your own ones!