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In a rock song, the guitar riff is 6 measures long, the bass part is 16 measures long, and the keyboard part is 5 measures long. When the song

begins, the guitar and bass play together for 3 measures before the keyboard comes in. The patterns will keep repeating until the bridge. The bridge of the song will start when all of the patterns finish together. If the bridge of the song is to occur as early as possible, in what measure will the patterns stop (just) before the bridge?


 take the L.C.M of 6 and 16 = 48 => the bridge of guitar a d bass step 2 : since keyboard comes after 3 measure delay, 48-3=45. which is a multiple of 5. hence the bridge occurs at 48th measure
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