Whatever your musical intentions, developing evenness from finger stroke to finger stroke across various pulse patterns is an essential component to good right hand technique. One tool to develop this through scales is to pair three-finger right hand patterns (ami, pmi, ima) to duple rhythms, such as eighth and sixteenth notes, or two-finger patterns (im, am, ai, pi, pm, pa) to triplet patterns. Sort of like patting your head and rubbing your belly at the same time.
I’ll use the following Major scale form to illustrate.
Three Against Two
Step 1 – Play the following eighth notes using the following three-finger right hand fingerings: ami, pmi, ima. Focus on maintaining a clear duple pulse and a consistent tone quality from note to note.
Step 2 – Play the following sixteenth notes using the following right hand fingerings: ami, pmi, ima. Focus on maintaining a clear duple pulse and a consistent tone from note to note.
Step 3 – Once that is comfortable, you can further develop coordination between your hands by playing patterns that emphasize a duple feel continuing to use the right hand fingerings: ami, pmi, ima. Here are some of my favorites.
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Pattern 5
Two Against Three
Step 4 – Play the following triplets using the following right hand fingerings: im, am, ai, pi, pm, and pa. The most important fingerings to develop are im, am, and pi so prioritize there first. Like before, focus on maintaining a clear triple pulse and a consistent tone from note to note.
Step 5 – Time to coordinate those fingers. Challenge yourself to play patterns that emphasize a duple feel continuing to use the right hand fingerings: im, am, ai, pi, pm, and pa.
Pattern 1
Pattern 2
Pattern 3
Good luck and go pluck.