PLUS ONE, Japan
Published by the same publisher as MUSIC LIFE, Shinko Music, this magazine started as an offshoot of MUSIC LIFE in June 1972 as a quarterly magazine, titled '68+1'. Later it changed its name to PLUS ONE and became monthly. It was designed to be just like ROLLING STONE magazine. It has now ceased its publication.
Thank you to Toshikazu Urushibata for the information.
Below: November 1973.
ALBANIA (1) 
In ARABIC (3) -3 countries 
BULGARIA (2) 
In CATALAN (4) -2 countries
In CHINESE (12) -2 countries
CROATIA (4) 
CZECH REPUBLIC (11)
DENMARK (12) 
In DUTCH (74) -2 countries
In ENGLISH (834) -19 countries
FINLAND (15)
In FRENCH (123) -5 countries
In GALICIAN (1) 
In GERMAN (136) -4 countries
GREECE (19)
HUNGARY (2)
ICELAND (9)
IRAN (1)
ISRAEL (9)
In ITALIAN (86) -2 countries
JAPAN (63)
LITHUANIA (1)
NORWAY (45)
POLAND (14)
In PORTUGUESE (51) -3 countr.
ROMANIA (1)
in RUSSIAN (5) -2 countries
In SERBIAN (5) -2 countries
SLOVAKIA (1)
In SPANISH (187) -13 countries
SWEDEN (28)
THAILAND (3)
TURKEY (19)