Chords for ROOM39 Feat.โป่ง ปฐมพงศ์ (โป่ง หินเหล็กไฟ) - บอกตัวเอง | Remind [Official MV] (). Spark is the smartest and most interesting app to learn and enjoy playing guitar. Spark is an all-around app for beginners and advanced players to learn any song with chords or master new skills with hundreds of lessons and games in Spark.