Natalia, I recorded this video by placing my cellphone on a book beside the piano and then played. I am not trying to be a funny guy, but the best way to have a good arrangement is to write it yourself, put it in the key that best suits your voice and then play it yourself.   I sometimes use synthesizers to add strings, rhythm, drums, brass or whatever, but I did this with acoustic piano. I am just fortunate. For me, music reveals the heart. I can only hear these songs a certain way. You can start with a lot of notes and then remove what doesn't sound right!  ))))) Is this song within your voice range? Very easy to not sing and only play the background, but it will be awhile. I am currently swamped with a new job.