Detailed Instructions: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
Problem:The B strings tuned w/ low E 7th fret harmonic-(6th string,7th fret).
Solution:
The shorthand w/ is used to mean with. 2 pieces toast w/ gravy Is a shorter way of writing 'Two pieces of toast with gravy.' The B strings tuned w/ low E 7th fret harmonic-(6th string,7th fret). means 'The B strings tuned with low E, 7th fret harmonic . . .' Edited to add: As Denis de Bernardy correctly notes in the comment below, w/o means the opposite: without.