Table 1.

A description of the IMBQ variables, and ranges when appropriate.

IMBQ variables	Description of variable	Range
I. Music training	Quantification of amount and types of music lessons, classes, ensemble participation
a. MT1	Music training during elementary school and junior high school	0–6
b. MT2	Music training during high school, college, and after	0–4
II. Music listening hours: MLH	Quantification of the approximate amount of time per week spent listening to music. Five categories of least (e.g. never = 0) to most (9 hours or more = 4) listening time per week
a. MLH-BHL	Category of music listening hours before hearing loss	0–4
b. MLH-ACI	Category of music listening hours after cochlear implant	0–4
III. Sound quality	Appraisals of sound quality
a. SQR	Sound quality ratings: the average of scores on six bipolar adjectives (clear/fuzzy, easy to follow/difficult to follow, like/dislike, sound unlike music/sounds like music, unnatural/natural, unpleasant/pleasant in a variety of situations) regarding general sound quality of music post CI	0–10
b. Complex vs. Simple: CS	Bipolar adjective of complex (0) and simple (10) indicating how simple music listening is post CI	0–10
IV. Attitude toward music	General assessments of music at different times in hearing history
a. BHL	Before hearing loss
b. AHL	After hearing loss
c. ACI	After cochlear implant activation