Need further proof that Frusciante may have been the reason behind the Red Hot Chili Peppers' comeback via 1999's Californication, which featured him on guitar again?

Look no further than his latest, mostly striking, solo collection, in stores Tuesday.

Frusciante, who writes, performs and produces here, has a firm grasp on melodic, often poignant, songwriting. He creates memorable soundscapes with synthesizers and drum machines, which have more in common with psychedelic-folk than the Peppers' signature funk-rock.

That grasp is best exemplified on the beautiful acoustic/electric guitar instrumentals Ramparts and Murderers.

Don't think for a second though that Ten Days, Frusciante's third solo effort, will ever enjoy any mainstream success.

It's far too retro-sounding and cryptic to compete with the likes of the teen juggernauts and hip-hop acts currently ruling the charts, which is a shame because there is obvious talent throughout.

Highlights include Going Inside, the squealing-guitar-heightened opening track in which Frusciante explains: "You don't throw your life away, going inside, You get to know who's watching you and who, besides you, resides in your body."

Also worth a listen are the forboding synthesizers and electronic bleeps that wash over The First Season, which features some mighty passionate vocals from Frusciante, and the gently rhythmic Remain, Fallout and With No One.

The biggest mistake Frusciante makes is leaving in some of the weaker tracks among the 15 songs.

Be forewarned: He definitely has a few Yoko Ono moments on the avant-garde Wind Up Space, and the thudding Away & Anywhere.

Track Listing 1. Going Inside

2. Someone's

3. First Season, The

4. Wind Up Space

5. Away & Anywhere

6. Remain

7. Fallout

8. Ramparts

9. With No One

10. Murderers

11. Invisible Movement

12. Representing

13. In Rhyme

14. Saturation

15. Moments Have You