Is it hard?

yes & No.

If you go into it underestimating it, it will make it more difficult.

But yeah--it's easy to do simple stuff, hard to do more complex stuff.

but maybe you'll find you have a greater aptitude for the bass, or no aptitude at all.

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It wasn't Willy-Nilly, it was at crows.

Bass guitar can be as easy or as difficult as you make it. It is true, the larger scale makes your fingers stretch a little more, but you get used to it.

Easy: Any country tune on the radio. Simple 4/4 tempo in "A". You just pluck the bass with a "bomp, bomp, bomp, bomp" type of rhythm... "A", "E", "A", "E", etc... and around the 8th beat you could throw in an 8th note turnaround "E", "F#", "G#", "A".

Hard: Trying to play like Geddy Lee of Rush in the song "YYZ".
Hard: Trying to play like Jack Bruce (back in the Cream days) in the song "Crossroads".

EASY TO PLAY- HARD TO BE GOOD- just like anything else

Andres Segovia once said:"Guitar is the easiest instrument in the world to play and the hardest to play well."I guess you can say the same for bass.

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'65 Strat,65 Mustang,65 Jaguar,4 more Strats,3 vintage Vox guitars,5 Vox amps,'69 Bassman with a '68 2-15 Bassman cab,36 guitars total-15asst'd amps total,2 vintage '60s Hammond organs & a myriad of effects-with a few rare vintage ones.