EarSketch Content Knowledge Test: Summer Camp 2012(Answer Key and Coding References)

Need to remove references to learning objectives, depth of knowledge, and difficulty for student copy.

1. Which EarSketch API Function loops a musical clip between a starting and ending time? (LO3a) (DLK1) (Moderate)

A. init()B. insertMediaSection()C. fitMedia() D. makeBeat()E. I don’t know

2. DKL1, LO4a (Easy)On what measure does track 2 begin?

a) 8b) 9c) 14 (distractor)d) 16e) I don’t know

3. Given the following function: (LO9b) (DKL2) (Moderate)

def awesomeBeat(music1, music2, start):makeBeat(music1, 1, start, “0-0-0-0-0+++0-0-”)makeBeat(music2, 2, start, “0-00-00-0-00-000”)

The programmer calls:

awesomeBeat(HIP_HOP_DRUMS3_2M, HIP_HOP_DRUMS4_2M, 4)

Which picture of the Reaper interface represents the results?

A.

B.

C.

D.

E. I don’t know

4. A programmer runs the following code and gets an error message: (LO11b) (DKL2) (Easy)

1 from earsketch import *2 init()34 drum1 = HIP_HOP_DRUMS4_2M56 fitMedia(drum1, 1, 1)78 finish()

Error message:

Which line needs to be fixed and why?

A. Line 1: earsketch is misspelledB. Line 4: HIP_HOP_DRUMS4_2M is not definedC. Line 6: fitMedia() is misspelledD. Line 6: fitMedia() needs one additional argumentE. I don’t know

5. Which code example puts the beat “0+++0+++0+0+0+++” on measures 5, 6, 7, 8? (LO6a) (DKL2) (Moderate)

A. music = HIP_HOP_DRUMS4_2M for measure in range(5, 9): makeBeat(music, 1, measure, “0+++0+++0+0+0+++”)

B. music = HIP_HOP_DRUMS4_2M for measure in range(1, 5):

measure = measure * 2makeBeat(music, 1, measure, “0+++0+++0+0+0+++”)

C. music = HIP_HOP_DRUMS4_2M for measure in range(5, 8):

makeBeat(music, 1, measure, “0+++0+++0+0+0+++”)

D. music = HIP_HOP_DRUMS4_2M for measure in range(4):

makeBeat(music, 1, measure, “0+++0+++0+0+0+++”)

E. I don’t know

6. Given the following code: (LO6a) (DKL2) (Hard)

drum1 = HIP_HOP_PROGDRUMS11_2Mdrum2 = SOUL_TAMBOURINE_4Mbass = TECHNO_DEEPTOUCHBASS_2Mmusic1 = TECHNO_BLISSEQSYNTH_2Mmusic2 = HIP_HOP_PROGSYNTH1_8M

introList = [drum1, drum2, bass, music1, music2]

for track in range(1, 5): mediaIndex = track fitMedia(introList[mediaIndex], track, 1, 9)

What audio sample will be on Track 3?

A. TECHNO_BLISSEQSYNTH_2M

B. SOUL_TAMBOURINE_4M

C. TECHNO_DEEPTOUCHBASS_2M

D. HIP_HOP_PROGDRUMS11_2M

E. HIP_HOP_PROGSYNTH1_8M

F. I don’t know

7. Given the following code: (LO7a) (DKL2) (Hard)

music = SOUL_PIANO2_2Mstart = 1beat = “0-0-0-0-0+++0000”

makeBeat(music, 1, 1, beat)makeBeat(music, 1, 2, beat)makeBeat(music, 1, 3, beat)makeBeat(music, 1, 4, beat)

Which function will perform the same action as the code above?

A. def groovy(music, beat, start): for count in range(4): measure = count + start makeBeat(music, 1, measure, beat)

groovy(SOUL_PIANO2_2M, “0-0-0-0-0+++0000”, 1)

B.def groovy(music, beat): for measure in range(4): beat = measure + 1

makeBeat(music, 1, 1, beat)

groovy(SOUL_PIANO2_2M, “0-0-0-0-0+++0000”)

C. def groovy(music, start):

fitMedia(music, 1, start, end, beat)

groovy(SOUL_PIANO2_2M, 1)

D.def groovy(start, end):

for measure in range(start, end): makeBeat(music, 1, start, beat)

groovy(1, 5)

E. I Don’t Know8. The Reaper track image and code below represents a good example of: (LO2c) (DKL2)

(Moderate)

from earsketch import *

drum1 = HIP_HOP_PROGDRUMS11_2Mdrum2 = SOUL_TAMBOURINE_4Mbass = TECHNO_DEEPTOUCHBASS_2Mmusic = TECHNO_BLISSEQSYNTH_2M

mediaList = [drum1, drum2, bass, music]

init()

for track in range(1, 5): mediaIndex = track - 1 measure = (track * 2) - 1 fitMedia(mediaList[mediaIndex], track, measure, 9)

finish()

A. a bridge before the return of the chorus using modulation to drive listener interest.

B. an introduction using additive technique of layering musical tracks to build up to a full sound.

C. a fill with a musical sample sliced into smaller 16th of a beat sections.

D. an instrumental solo line with thin texture acting as a transition.

E. I don’t know

9. The effect in the graphic and code below can best be described as: (LO1b) (DKL2)

(Moderate)

from earsketch import *

init()setTempo(144)

keyboard = LATIN_FLUTE3_2Mdrums = LATIN_HEAVYBOSSADRUMS_2M

fitMedia(keyboard, 1, 1, 9)fitMedia(drums, 2, 1, 9)

start = 1end = 5

setEffect(1, VOL_PAN, VOL_PAN_PAN, -100, start, -100, end)setEffect(2, VOL_PAN, VOL_PAN_PAN, -100, start, -100, end)

start = 5end = 9

setEffect(1, VOL_PAN, VOL_PAN_PAN, 100, start, 100, end)setEffect(2, VOL_PAN, VOL_PAN_PAN, 100, start, 100, end)

finish()

A. panning between left and right channels at measure 5.

B. using distortion to emphasize beats 1 and 3 of the musical sample

C. a crescendo using an increase in paning and pitch change from -100 to 100 from measures 1 to 5.

D. low-pass filter cutting frequencies between -100 and 100.

E. I don’t know

10. Which keyword below creates a new function? (LO9a) (DLK1) (Easy)

A. range():B. def C. notD. finish()E. I don’t know