Song of the Waterfall harmonic progression

[quaver]

I am trying to understand the harmonic progressions in Song of the Waterfall by Loeschhorn.  It is in d minor.  In measure six I have the IV chord (of d minor) for the first two beats.  The third beat has the notes of a C7 chord. So how would that fit in d minor, it doesn't seem to belong.

[pianoguy711]

the C7 is a transition chord probably to the relative major (F major). the IV chord that came before (g minor) is the II chord of F major and C7 is the V chord of F major.  In jazz we call this a II-V-I chord progression.

[lelle]

He is indeed modulating to F major. After the C7 comes a d minor chord which in this case makes it a deceptive cadence - you think he is going to land on F major after the C7, but lands on d minor instead which is the tonic paralell in F major. However you still know he is thinking in F major because the following two bars before the repeat are moving towards landing on that F major chord.