Based on the intro to the Cream song "Sunshine Of Your Love" this riff uses double stopping ( getting two notes with one finger )
I've put the left hand fingering under the first line of tab.
The scale we're using is D pentatonic The notes marked * have to be bent slightly - just pull your 1st finger towards the top string.
On the soundfile the first section of tab is repeated three times.
The last phrase is the same except for the last three notes which are an octave higher.
This is the second section of tab - To get these last three notes - slide, using your third finger,from fret 7 to fret 12 then your first finger gets the note at fret 10 on the 3rd string back to your third finger at the 12th.