Gimme Some Lovin’: What Makes It Rock So Hard?
The Hammond comes in screaming, and you recognise the song within seconds. I explore three musical mysteries behind the energy of “Gimme Some Lovin’”.
The bass riff starts. The Hammond organ comes in screaming, and you instantly recognise “Gimme Some Lovin’”. Within seconds, the Spencer Davis Group have the whole thing roaring.
I love that sound. You can hear the rough edge of the organ against that stubborn bass riff, and then Steve Winwood’s voice cuts through it. A Hammond played like this is a wonderful thing.
And once you start playing it, a few things make you stop and wonder. Why does G7, a chord you might expect to resolve somewhere else, sound so comfortable at home? How does the verse create all that movement while the bass stays on G? And where do B♭ major and E♭ major suddenly come from?
Those are the three mysteries I want to get into. I want to take those moments apart at the piano and hear what each part contributes, starting with that home chord.
Listen to “Gimme Some Lovin’" (The Spencer Davis Group) while reading this article 🎧
1. How can G7 sound like home?
If you play a G7 chord followed by C major, you get a familiar resolution. The G7 creates an expectation; the C chord settles it. You may well have learned G7 as a chord whose job is to get you to C.
So what is it doing here, sitting on G and sounding perfectly happy about it?
This is a sound I love in blues and rock: the home chord has a seventh in it. There is some roughness in that sound, some tension, and the music is quite happy to stay there. You can keep the chord’s bite without using it as a signpost to a different home.
The note to notice is F natural. G major normally has F♯. Lower it to F, and you have the characteristic seventh of G Mixolydian.
Mixolydian is a useful way to describe this bluesy home sound. Blues has more freedom with its notes than a single scale label can capture, so I would keep listening to the actual riff and voice as well as thinking about the scale.
You can hear a related Mixolydian colour in my analysis of “Sweet Child O’ Mine”. That lowered seventh is worth having under your fingers if you write rock songs.
The riff leaves something for the voice
There is another lovely detail in the Hammond riff: it often leaves out the third. That is the note that would settle the major-or-minor question. Over G, B is the major third and B♭ is the minor third.
With the third left open, there is room for the vocal to lean into those blues sounds. And there is a practical reason rock players love leaving it out: a root and fifth can stay clear and forceful when you add distortion. Put a third into a heavily distorted sound and you can hear how much more crowded it becomes.
Then listen to Winwood’s vocal. It keeps coming back to the major-third area, B. The accompaniment has left that space available, and his voice makes use of it. I love how much the arrangement gets out of deciding which part will supply which notes.
2. How can the song move without going anywhere?
Now follow the bass through the verse. However much the organ moves around above it, that G keeps coming back.
A simple way to hear the harmony is an alternation between G and C/G. The slash means “over”: C/G is a C major chord over the bass note G. So the upper harmony changes, while the bottom stays put.
That fixed foundation is a pedal point. More specifically, it is a tonic pedal, because the note being held is the home note. Above it, the G-to-C movement is I to IV, the kind of plagal movement you hear so often in gospel and blues.
My image for this is a race car with the parking brake on. The engine is revving and the wheels want to go, but you are still holding it there.
Listen to the Hammond with that in mind. Those changes have plenty of life above the bass. The organ’s sound and rhythm keep the passage driving while the G underneath gives it somewhere firm to push against.
I use this idea in verses when I want to keep some movement in reserve. If the bass follows every chord straight away, that option is already being used. Keep it on a pedal for a while, and the moment when it finally moves can do much more.
3. Where did those B♭ and E♭ chords come from?
And here is that moment. In the pre-chorus, the bass is suddenly free to follow the chords. G, then B♭, then C, then E♭. The roots rise, and the whole passage takes off.
This is where the parking brake comes off. After all that time with G underneath, you really hear the change.
But hang on. B♭ major? E♭ major? Neither chord belongs to G major.
Both chords are available in G minor, which shares the home note G with G major. That makes it the parallel minor. Taking a chord from that parallel key is called borrowing, or modal interchange.
If you want a closer look at that relationship, my explanation of relative and parallel minor goes through it with examples.
What I particularly like is the sound of those major chords on the borrowed roots. Borrowing from minor gives you B♭ major and E♭ major here. You still get the full major-chord sound, with notes that reach outside the scale the song has led you to expect.
And this happens just as the bass starts moving. The change of harmony and the release of that G pedal work together. That is a big part of the lift I hear in this section.
That E♭ chord before the return to G
The E♭ is the one I keep wanting to play again. It has such a satisfying pull back to G, even though it is not the dominant chord.
The dominant of G would be D or D7. E♭ is the borrowed ♭VI. To hear how it connects, look inside the chords.
Two tiny movements and one shared note connect those chords. The G itself changes jobs: first it is the third of E♭ major, then it becomes the root of G major.
Put your fingers on those voicings and you can feel it: hold the G, move B♭ up to B, and move E♭ down to D. The connection is right there under your hand.
Now listen to the whole thing again
There is so much to enjoy here. That Hammond sound is already exciting on the home chord. The voice finds the major third in the space the riff leaves. Through the verse, the upper harmony keeps moving against the stubborn G bass. Then the pre-chorus lets the bass go and takes it through those borrowed chords.
If you try one idea in your own music, compare a verse with the bass fixed on its home note against the same verse with the bass following every chord. Listen to what each version leaves you wanting to hear next. You might keep the pedal, use it for only part of the verse, or find that moving straight away suits your song better.
Then go back to the record. Turn it up enough to enjoy that organ, and listen for the moment the bass finally gets to move. That is the bit I will be waiting for.
The piano recordings and scores are my original educational examples, at 144 BPM. They isolate the harmonic ideas in G and are not transcriptions of the record’s riff, rhythm or organ voicings.
Notation uses Bravura by Steinberg, under the SIL Open Font License.
