Target and Passing Notes.

So these are my target notes for a piece in Gmajor. Is my understanding correct?

It sounds like you're talking about chord tones and non-chord tones (target notes and passing notes). If you eliminate notes 2, 4 & 6 from a major scale, you'll have a major 7th arpeggio, the root of which corresponds with the key note. Those chord tones will harmonise with the tonic chord (G major) but not necessarily with all the other chords in the key of G major. You have to be aware of the actual notes of whichever chord is being played at the time - not just the tonic (key) chord.

My definition of 'target tone' is one you're aiming for. For example, if the chord is Fm, and it's going to change to Ebm7, I might 'target' the seventh (Eb) to end my Fm line. Hitting that note a half-beat before the change is considered an 'anticipation' - it's a non-chord tone with Fm, but it's about to become a chord tone when the Ebm7 sounds.

Target tones are really useful to give shape to your lines, and to avoid having every phrase end on the tonic of the 'chord of the moment' as Kingpatzer puts it. Ending on other chord tones, like the fifth, or anticipating chord changes with your target notes can make your final resolution (which should be to the tonic) sound much more fulfilling.

Thanks Guys. Only recently it dawned on me that this stuff is important. :)

Can you recommend a book/article that explore this concept in detail.