God's gift - 14 days ' OST Part 3 has been recognized as a luxury vocal B1A4 's mountains were involved . Younggyu pole to smoke in 'B1A4' member of the ' right ' to support and be a part of the first drama OST ' mountains ' is sick than through will meet fans with a new look . Movies and dramas and musicals ( pungwolju ) to expand its area of bakgiheon gangmin music composed and directed by line lyrics cold start ( joseungwoo ) theme song, sick is a medium tempo song is a good representation of emotions in the lyrics dongchan captures the ear with melody . Lines already seen in the drama sick of playing the guitar version of the pole with dongchan is hurt and sadness were also receive favorable draws well . Bakgiheon group of creative music , led by music director tuem (Moving Movie Score) is active in cutting-edge composer ohbyeongju Composed, Arranged Guitar yen gotaeyoung involved with , harmonica gwonbyeongho increased participation was the completeness of the song , ' mountains ' depicts hard , but as the voice of the bittersweet sick on April 8 revealed through the source site .