Using the Drop 2 technique, it’s fairly straightforward to turn the 4-note rootless LH ii-V-I voicings posted earlier into two-handed, open voicings that are great for comping behind a soloist. Below is a PDF showing four-note, Drop 2 voicings through all 12 in two inversions. Though all the keys are shown in the PDF, it’s good practice to try to generate the voicings yourself, without having to look at the sheet for all the keys. Also, even though the voicings provided on the sheet are for ii-V-I’s whose key centers are related by descending whole steps (C, Bb, Ab, etc.), it is also good to practice different key center relationships, i.e. the circle of fourths, descending half steps, randomly, etc. And it is very important to start getting some practical application as soon as possible by applying the voicings to tune you are currently practicing.