When conducting “field work” during ethnographic research, interviews with musicians are a vital part of “data collection” that ethnomusicologists must conduct.  It provides insight on what we observe from an outsider’s perspective.  These interviews answer the questions that pop up in our minds when observing the culture and music in front of us.  It is a social interaction between the researcher and the practitioner, an exchange of ideas that results in the recording of the researchers findings.  This is a limitation that researchers of ethnomusicology must consider.  We are limited by what we observe and what we interpret and analyze in the “thick descriptions” that we write.  Of course, this limitation is acknowledged but it is that very acknowledgement of uncertainty in the findings of researchers that is the basis of the difficulty of building up from the ideas of others.  This uncertainty is circumvented through the extensive observations made by researchers, usually culminating in years worth of observations about a certain ethnomusicological topic.   It is through this extensive and well-documented process that provides the validity of any assumptions, connections, generalizations made by ethnomusicological writers.  Through experience, proximity, and social relationships, ethnomusicologists provide the observations and analysis that convey knowledge on to those  that seek to unravel the cultures of music.