Finding the right nail shape to express yourself on the guitar is an elusive science. To make the puzzle more complicated are the facts that nails are organic, are continuously growing, and are affected by variables like weather and diet. Because everyone attacks the strings with variable angles and tensions in the fingertips and because we all have an ideal sound we are after one shape may not be as effective as another. Some guitarists have a “sound” with little sonic variance while some use color and gradations of timbre to interpret their music. So, whether you are a beginner starting to experiment or an advanced player looking to expand your knowledge, the following videos are the best I’ve found so far to see exactly what the pros do and how they approach nail shape.
In french with subtitles, Six String Journal favorite Thomas Viloteau shows an ingenious method for adapting the shape of the nail to your stroke.
Here is a screen shot from a video of Spanish guitarist Ricardo Gallén checking his nails before his recording of the Bach lute works.
Last but not least, Cuban virtuoso Marco Tamayo details the steps he uses to shape his nails.
Years ago, when Marco was visiting he drew this diagram out when I asked about nails.
Go shape then pluck!