Participants who were randomized into intervention group were assigned to listen to the music everyday (day 1st to day 30th), at anytime of day that was suitable with their lifestyles but not at the time of BP measurement. During day 31st -120th, participants did not listen to the music. Other treatment was the same as the control arm.

control arm received conventional hypertension treatment.

The music was composed and edited by a professor of Folk Musical Department, Faculty of Arts, Khon Kaen University. There were total of 6 songs, 32-minute length. The music was slow-instrumental, 60-80 beats per minute and ranged between 40-60 decibel levels.

Home blood pressure of participant was monitored and recorded.

Office blood pressure was measured at day 0th (baseline) and at day 120th (3-month follow up).