Software for transcribing songs

[CooperRex]

I'm trying to work on my ear training by learning to transcribe bass from songs rather than sift through all the tabs and YouTube videos out there.

What is the best software available that will help me slow down the tempo of songs and pump up the bassline so that I can make out the notes better?

Changing the EQ on my iMac and using headphones has helped, but not so much for fast songs or those with the bass buried deep in the mix.

Thanks!

[Stumbo]

Here are some links you might want to take a look at:
~Software: Notation, Transcribe, Slow Down, Loop, Record, Metronome,Utilities
1 Slow down
2
3
Taking transcribing to the next level

BestPractice-PC based, free, easy to use, slow downer/pitch shifter/looper/vocal remover/bass isolator/ backing track maker

Free music software
Cheap/good recording software
Guitar Pro

Audacity and Transcribe are highly rated and work on a Mac.