Intro [bass line and chords shown]:

                                 Ab  Bb        [2X]
         v   v   v   v     v   v   v   v
        -----------------|-3-----1---------|
        -3-3-3-3-3-3-3-3-|-----------------|
        -----------------|-----------------|
        -----------------|-----------------|

               Ab  Bb        Bb  Ab
         v   v   v   v     v   v   v   v
        -5-----3---------|-7-----5---------|
        -----------------|-----------------|
        -----------------|-----------------|
        -----------------|-----------------|

[Note: no strict verse/chorus structure]

        Bb       Ab
        It's no secret
        Bb             Ab
        How strong my love is for you
        Bb       Ab
        It's no secret
        Bb                        Ab
        When I tell you what I'm gonna do
                                  Bb
        'Cause I love you, yes I love you
        Eb       Db
        It's no secret
        Eb              Db
        Everybody knows how I feel

        Bb       Ab
        It's no secret
        Bb             Ab
        When I say my love is real
                                  Bb
        'Cause I love you, yes I love you
        Eb       Db
        It's no secret
        Eb               Db
        When you got me jumpin' up and down

        Bb       Ab
        It's no secret
        Bb                  Ab
        'Cause my heart is chained and bound
                           Bb
        I love you, yes I love you, yeah
        Eb       Db
        It's no secret
        Eb              Db
        Everybody knows how I feel

Guitar solo:

        Bb       Ab       Bb       Ab                Bb
        / / / /  / / / /  / / / /  / / / /  / / / /  / / / /

        Eb                [Fm/Eb*]                 [Eb]
        As I get older the years they get heavy for you **
        (Whoa) Is it any wonder I feel that my whole life is through **
        (Yeah) When I start feelin' how strong my love is for you **
        (Whoa) Knowin' I'll be empty wantin' your love like I do **

        * chords implied by vocal harmonies

        ** 12-string, capo I:

                          [4th time only]
        --0-0-0----0-0-0------0-2-3-----
        --3-5-5----3-5-5----------------
        --2-4-5----2-4-5----------------
        --------------------------------
        --------------------------------
        --------------------------------

        [song is in Eb from this point on]

        Ab       Gb
        It's no secret, no
        Ab               Gb
        When you got me jumpin' up and down

        Eb       Db
        It's no secret
        Eb                  Db
        'Cause my heart is chained and bound
                           Eb
        I love you, yes I love you

        Eb       Db
        It's no secret, no
        Eb              Db
        Everybody knows how I feel, yeah
        Eb       Db
        It's no secret, no
        Eb              Db
        Everybody knows how I feel
        Eb       Db    Ab5/Eb  [12-string, capo I: xx003x]
        It's no secret