No, it is not an adverb. The word tuning is a verb form and gerund (noun ) for the verb "to tune." There is no adverb form.
The verb to tune has the participle adjectives tuning and tuned, but these do not have adverb forms.There is a related derivative "tuneful" which has the adverb form tunefully.
Tuning
Normally standard tuning E tuning E low
the tuning is 98.7.
Evans Tuning was created in 2004.
William Tuning was born in 1935.
Fine Tuning was created in 2001.
Fine Tuning ended in 2008.
RPM Tuning happened in 2004.
RPM Tuning was created in 2004.
This piano needs another tuning. I am tuning into my second-most favorite radio station now.
There are several companies that specialize in diesel tuning. Some of these companies include Torqtec, Fine Tuning Performance, and Diesel Tuning Box.