I am just an amateur but Pino's cover sounded nice for my taste.
You don't have to follow the exact and every single note of the melody line of the original if you don't want to.There are no lyrics heard on this cover to follow anyway your playing.
So instead for each and single syllable of the lyrics that would "demand" a specific note or notes,you could improvise and play more notes that fit with the chord,or "delay" some notes playing but always end up to the note that is crucial to the melody line and probably better not to hit notes outside the key if you are not a real skillful composer so you know what you are doing.
If we search the internet probably we will find a lot of more or less different versions of this song as for every other song.
Yes it might sounded a little weird at first just because I am used to hear that song on a higher octave but I can imagine a man with a bass voice singing it softly without driving the attention with unnecessary highs and lows trying to impress.(The big "WOW" of the song is it's brilliant melody,no need more)
How much this specific saxophone sounds realistic? I cannot tell since I don't play any other instrument but I have heard other sax and voices from other keyboards that sounded less realistic by far to me.All notes the same volume,no sart! and stuff like that.
Of course everyone has got his own taste in sound so I liked Pino's cover.
Sorry about that to the saxophone players
Hans really great to show how a guitar sound should be played with lot's of notes each time to sound as closer as possible to the acoustic guitar playing.