Intro:
|---------------------------------------------------|
|---------------------------------------------------|
|---------------------------------------------------|
|-2--5--7---2--5--8-7---2--5--7---5--2--------------|
|-0--3--5---0--3--6-5---0--3--5---3--0--------------|
|---------------------------------------------------|x6(depends on the version)


Just before the voice comes in:
|---------------------------------------------------|
|---------------------------------------------------|
|---------------------------------------------------|
|---7---7--7--7---7--5------7--7--------------------|
|--7---7--7--7---7----5----7--7---------------------|
|-5---5--5------5------3--5-------------------------|x4

While saying 'smoke on the water'-'and fire on the sky'
|--------------||------------------------|
|--------------||------------------------|
|--------------||------------------------|
|--------------||------------------------|
|-5------------||--3-3-------------------|
|----6---------||-5-5-5-3-0--------------|

Again Part 1
|---------------------------------------------------|
|---------------------------------------------------|
|---------------------------------------------------|
|-2--5--7---2--5--8-7---2--5--7---5--2--------------|
|-0--3--5---0--3--6-5---0--3--5---3--0--------------|
|---------------------------------------------------|

Then comes the solo,Part 2,Part 3,Part 1 and that's it.
By Pablo Torres