Is there a difference in tax break wether i include my expenses in the 1099 income section or the w2 section? also, where do i include musical instruments? thanks.

for example, I use lots of cab services. some are for 1099 (self employment) gigs, and some are for gigs with a company that pays me with a w2. can I put all of those travel expanses together in the "income and expenses" section (instead of dividing some to the deductions section? also, in case i bought musical instruments to use in both cases (w2 and 1099 gigs) is there a "better" way for me to post that expanse? do i include it as an "asset" in the "income & expenses" section or as an instrument i used in the diductions section? thank you very much.