Chords for Ek Haseena Thi | Lyrical| एक हसीना थी | Karz | Rishi Kapoor | Kishore Kumar | Asha Bhosle (). 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.