Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to set up a bass guitar [title] Examine the headstock. [step] This is the top of the guitar, where the strings are held on to the nuts for tuning. Note how the strings come off at the nut and wind around each tuner, especially how many times each wraps around.

Ending1: Make sure there are no loose threads, and the string is in tune right where it should be. [substeps] Record another sound and transfer the sound back to the headstock. Ending2: Lower strings, which are thicker, will wrap around fewer times. This is a good reference point for when you re-string the bass yourself to see if things are fitting properly. Ending3: The headstock is the main shaft of a bass guitar, but it can also be accessed by the tuners themselves (instead of contributing where they are attached). [title] Identify the middle part of the guitars head. Ending4: This is because the headstock is the piece of material running across the head of the guitar. [title] There are many factors to consider when buying a bass guitar.

Answer format: ending1/ending2/ending3/ending4