Taken from amazon.com.jp and anime jungle collector's shop
A CD soundtrack to "Manami and Nami Sprite" was released in April 25, 1997. Here are the track titles along with their translations.
Toei V Anime "SUPURAITO" Vol. 1 & Vol. 2 ORIJINARU DORAMA & ORIJINARU SAUNDOTORAKKU
2718 yen
Normal code: PSCR-5589
JAN code: 4988023035925
Released by: Universal Music
1. PROLOGUE
2. *Tetsu/Toru no mousou {A Penetrating Delusion}
3. Chiaki no TEEMA {Chiaki's Theme}
4. Manami no Kiki {Manami's Crisis}
5. **Henshin! NAMI Toujou! {Transform! Nami Appears!}
6. Fuan na Asa {An Uneasy Morning}
7. NAMI no TEEMA {Nami's Theme}
8. Toru no TEEMA {Toru's Theme}
9. Suiei no Jugyou {The Swimming Lesson}
10. Manami no TEEMA {Manami's Theme}
11. ***Mizu iro no Kisetsu {The Light Blue Season}
12. Chiaki no Oshioki {Chiaki's Revenge}
13. INTERMEZZO "TURN TABLE" by PLECTRUM Manami no TEEMA {Manami's Theme}
14. ***Mizu iro no Kisetsu {The Light Blue Season}
15. Manami {Female symbol X Male Symbol} Toru {Manami X Toru}
16. Kiken na Otoko . Masaya {The Hazardous Man - Masaya}
17. Manami {Female symbol X Female symbol} NAMI {Manami X Nami}
18. NAMI {Female symbol X Male Symbol} Toru {Nami X Toru}
19. ****Toru no Kaisou {Toru's Reminiscence}
20. *****Koufun no Shinsatsu {An Arousing Examination}
21. EPILOGUE
22. "Hello Bell" by PLECTRUM
*I believe this a pun because the character that is Toru's name can be read either as "Toru" or "Tetsu" {Penetrating}.
**Toujou - Entry (On Stage)
*** Listed twice
****Kaisou - Reflection, Reminiscence
***** Koufun - Excitement, Stimulation, Agitation, Arousal
Shinsatsu - Medical examination
Whenever a "X" appears in the track name, you can translate that as "doing something naugty"...
According to NeoWing there is a CD, Sunday Champion, by the band, PLECTRUM, with TurnTable, Sprite's first ending theme, as one of the songs!
Also, according to NeoWing, the CD Smile by PLECTRUM contains the second ending theme song, Hello Bell!