1973April: Returns to the United States. Records at Crystal Sound studio.
July: Releases the album "Kazenonaisekai". "Kinoumade no Omoide" is released as a single.
Latter half: "Tobacco no Kemuri" was used in the commercial for PILOT fountain pen and becomes the second single from the album.
First live recording at Shibuya Jean-Jean.
Members: Jun Fukamachi (p, key), Takeru Muraoka (sax), Kenji Omura (g), Kenji Takamizu (b), Shuichi "Ponta" Murakami (dr)

1974February: Releases the single "Fuyuzareta Machi".
March: Releases the live album "Fuyuzareta Machi Live".
April: Third trip to the United States. Records at Clover Studios in Hollywood.
July: Releases the album "Toki wo Mitsumete".
November: Invites members of The Section (Leland Sklar, Craig Doerge) from the United States to record her second live at Jean-Jean. At Jean-Jean, recording the second live

1975February: Releases "Rakujitsu no Theme", a theme song for NHK Taiga Drama "Oretachi no Shippai".
March: Releases the live album "Hontou no Koto wo Ieba".
Spring: Concert with David Campbell (arrangement, viola), and Loren Newkirk (p) from L.A.
Some of the songs are included in "MAYUMITY".
Summer: Records a new album at home in Hachioji, Tokyo, a residential area built in the mountains.
Since there were no soundproofing equipment, there were many complaints. She decides to invite her neighbors and held a meeting while listening to the songs.
However, the resulting sound was very natural, and it was "a recording in which the voice quality was maximized by the natural air."
Records her first session with Haruomi Hosono and Shigeru Suzuki.
October: Releases the album "Mayumity-Utsurona Ai-".
December: Releases "The SHOW" which records her Spring live performances.

1976Spring: CBS Records in France praises the album "Mayumity" and encourages her to do recordings in France.
December: Travels to France for recording.
At France

1977April: Releases the album "Mayumi" (French version) from CBS Records in France. It was released in several European countries as well.
With Michel Bernholc From the 18th to the 30th, invited as a guest to sing at Adamo's concert in the Olympia Hall, Paris.
With Adamo June: Releases the album "étranger" (Japanese and French version). Temporarily returns to Japan for promotion.
In late June, travels to the United States to produce a new album.
Recording at Fidelity Studios located in the suburbs of L.A.
October: From the 24th to the 27th, after returning to Japan, her first recital at the PARCO Theater in Shibuya. Releases the album "Aozora".
To manage the physical condition thoroughly, starts diet centered on organic food.

1978March: Releases the single "Sayonara dake wa Iwanaide".
April: From the 5th to the 8th, second recital at the PARCO Theater.
October: Publishes “Ugokanai Tokei" (Daiwa Shobou), which is a collection of essays published in magazines and newspapers.
December: Releases the original album "Nokoribi".

1979March: From the 2nd to the 7th, third recital at the PARCO Theater. “Itsuwa Mayumi ‘79” was her eighth concert in her career.
(Wearing Issey Miyake becomes a hot topic)
July to August: Returns to France to record the original album.
November: Releases the album "Michi".

1980March: From the 12th to the 23rd, fourth recital at the PARCO Theater. This becomes a long-run recital.
April: Starts the spring tour in Japan.
July to August: Travels to France to produce an original album.
August: Releases the single "Koibito yo".
September: Releases the album "Koibito yo". Start the autumn tour in Japan.
December: Receives the Golden Award from Japan Record Awards for "Koibito yo".
Participates in the NHK Kouhaku Uta Gassen for the first time and sings "Koibito yo".

1981March: Fifth recital at the PARCO Theater. It was a long run recital which went on for 29 consecutive days.
April: Starts the spring tour in Japan.
July to August: Her sixth trip to France to produce an album.
September: Releases the album "Marionette".
October: Starts the autumn tour in Japan.

1982February: First foreign artist to hold a concert at the Hong Kong Stadium.
September: Releases the single "Dakishimete (Ai wa Yumenoyoni)".
October: Releases the album "Shiosai". (Includes "Kokoro no Tomo")

1983First half: Hospitalized due to overwork.
October: Releases the album "Mado〜Semete Aiwo〜".
Second solo concert in Hong Kong, at the Queen Elizabeth Stadium.
At Queen Elizabeth Stadium in Hong Kong

1984January: Gets married.
March: Ceremony at a church on the outskirts of Paris.
April: Leaves the agency and establishes Mayumi Itsuwa Music Office "L'OREILLE".
July: Releases the album "Atsui Sayonara / 1984 Mayumi Itsuwa Live". (After the release of this album, takes a maternity leave until her new start on December 5, 1985.)

1985January: Gives birth to a baby boy.
December: Her new start. Releases the original album "Kaze no Uta".

1986April: Releases the single "Toki no Nagare ni - Tori ni Nare".
May: One-man concert at the convention hall in Jakarta, Indonesia.
September: Releases the original album "Toki No Nagare ni".
October: Starts the new start tour "Autumn Tour 86 'Toki no Nagare ni'".
December: Appears in NHK Kouhaku Uta Gassen with "Toki no Nagare ni - Tori ni Nare".

1987April: Releases "Soshite Sayonara", which was the theme song for Kansai Television and Fuji Television Network's suspense drama.
May: Releases the original album "Wind and Roses". Starts the spring tour in Japan.

1988September: Releases the original album "Nostalgie".

1989March to July: Spring tour "Nostalgie". Tour was held at about 50 venues in Japan.

1990October: Releases the 17th original album "Namonaki Michi". At the same time, starts the tour "Namonaki Michi".

1991January: Releases the album "Kokkyo" in Taiwan, which includes Chinese songs.
September: Releases the best album "Anniversary Eve～Brand-New Best～".
September: Gives birth to a baby girl.
November 1st: Releases the 20th anniversary album "Another Face～English Best Selection～". (English version of her signature songs)

1992May: Performs in Malaysia (Sponsored by Japan Foundation, Venue: Putra World Trade Centre, Guest: Sheila Majid)
August 21st: Releases the 20th anniversary album "The Memorial Album".
October (to February 1993): Starts Mayumi Itsuwa 20th Anniversary Collection Concert Tour '92-'93.

1993February: Releases "Toritachi no Uta" (Mainichi Newspapers), a collection of all her songs (lyrics).
June 21st: Releases the 20th anniversary best collection "Anthology Vol.1 / Vol.2".

1994February 21st: Releases the single "Kanashimi ni Makasete".
March 4th (to June 12th): Starts Japan tour.
March 9th: Releases the album "Personal".

1996February 1st: Releases the 21st original album "21st Century".
Releases the single "Utakata". Releases the best album "NOW & FOREVER".
February 16th (to June 16th): Starts Japan tour.
May 22nd: Releases the single "Koi wa Totsuzen ni".
Later half: Decides to take a break and focus on the kids.

1997January 22nd: Releases the single "Toki wa Sugite".

2000July 19th: Releases the single "Aino Yakusoku/Kokoro no Uta".

2002January 25th to February 9th: Travels to the United States to record "Time to Sing".
Reunites with her old friend David Campbell (arranger) in L.A. after more than 20 years.
Reunion with her old friend David Campbell Studio was a home studio.
At home studio February 20th: Releases the best album "MAYUMI CLASSICS".
September 19th: Releases ”Yume wa Toki wo Koe" included in the compilation album "Japan-China Friendship 30th Anniversary Kokoro no Tomo".

2003April 9th: Releases the album "Time to Sing".
August 31st: Performs at Roppongi Sweet Basil for the first time in 7 years.

2004April 17th to 18th: "'Time to Sing' Mayumi Itsuwa with New Japan Philharmonic" concert at the Tokyo Opera City Concert Hall. Performs at this venue for the first time in 8 years.
June 23rd: Releases the single "Fureautoki wo Shinzite". The album version was used as the ending theme song TV Tokyo's "World Business Satellite" and it aired for one year from April.
August 8th: "'Time to Sing' -encore in summer-" concert at NHK Hall.

2005August 24th: Releases "KOKORO NO TOMO Mayumi Itsuwa duet with DELON", a charity CD for Sumatra earthquake.
December 21st: Releases the best album "MAYUMI THE BEST ～KOKORO NO TOMO".

2006November 17th: "Mayumi Itsuwa -since Autumn 2006-" concert at the NHK Osaka Hall.
November 19th: "Mayumi Itsuwa -since Autumn 2006-" at the Tokyo International Forum Hall C.

2007October 31st: Releases the original album "Welcome". Original album has not been released for 11 years and 10 months.
November 7th to 30th: "2007 Welcome home" concert, held at 10 venues in Japan.

2008January 18th: Appears on NHK General TV "Premium 10 'Kokoro no Uta' connecting the bond of the disaster area - 13 years after the Great Hanshin Earthquake".
Sings "KOKORO NO TOMO" with Indonesians living in Japan, Ayaka Hirahara, and Suginami Junior Chorus.
March 18th: Appears on NHK General TV "Kayo Concert" and sings "Toki no Nagare ni - Tori ni Nare".
April 21st: Appears on Fuji Television Network "SMAP X SMAP Kayosai" and sings "Koibito yo".

2009February 16th: Appears on Fuji Television Network "HEY!HEY!HEY! Meikyoku CHAMP" and sings "Koibito yo".
July 24th: Appears on NHK BS2 "Anatano Machi de Yume Concert".
August 22nd: Appears on NHK General TV, the 41st "Omoide no Melody" and sings "Koibito yo".

2013July 24th: Releases the original single "BORN AGAIN" (song for NHK radio Shinyabin). Original single has not been released for 9 years.
October 23rd: Releases the best album "Lovers&Friends"
October 26th to November 29th: Mayumi Itsuwa concert, held at 5 venues in Japan.

2014January 31st, February 4th to 5th: Performs at billboard LIVE (Osaka / Tokyo).
March 18th: Attends the event for Indonesia-Japan joint production program "Kokoro no Tomo POP!" (At the Embassy of Indonesia)
* Duet with CHEMISTRY Kaname Kawataba, sings "Kokoro no Tomo"
July 15th: Concert at the Hong Kong Convention and Exhibition Centre for the first time in 31 years.
July 30th: Releases the first DVD "Mayumi Itsuwa LIVE COLLECTION" which includes the performance from the 80's and the 90's.
September 27th to February 5th: Concert Tour 2014-2015 "Toki wo Mitsumete". Japan tour with total 11 performances.

2015April 25th: Performs in Taiwan.
September 11th: Receives an award from the Embassy of Japan in Jakarta, Indonesia for "Kokoro no Tomo".
Receiving an award from the Embassy September 12th: Sings "Kokoro no Tomo" at Jakarta Japan Festival, with the local rock band J-Rocks and the chorus group enjuku.
Jakarta Japan Festival October 10th: Appears in "Folk Concert Kyono Tabibito again" at the Maruyama Park in Kyoto.
October 2nd to March 12th: Concert Tour 2015-2016 "Koibito yo". Japan tour with total 20 performances.

2016March 18th: Appears in "Sakura Festival" at Halong, Vietnam.
Sings "Kokoro no Tomo" with the local singer My-Tam. Sings "Koibito yo".
October 19th: Releases the DVD "Mayumi Itsuwa Live -Kokoro no Tomo- AFTER DECADES" which was shot at the billboard LIVE Tokyo.

2017Debut 45th Anniversary Concert Tour "DEBUT 45TH ANNIVERSARY Mayumi Itsuwa Concert -flower-". Japan tour with 19 performances.
July 31st: Releases 45th anniversary CD-BOX "Mayumi Itsuwa Best -90 SONGS". (Total 90 songs, 5 CDs)
August 30th: Releases the best album "GOLDEN☆BEST Mayumi Itsuwa -Special Selection-". Album includes the cover of "Omoide Sagashi" which is a song provided to Yujiro Ishihara.

2018March 17th: 2 performances at billboard LIVE Tokyo.
June 20th: Participates in a session for Danny Kortchmar and Immediate Family
VIVID SOUND CORPORATION 45th Anniversary Super Live
WEST COAST SOUND SUMMIT Vol.1
With Leland Sklar Group photo after rehearsal December 10th: "Shichijushichi Starlight Symphony" charity concert at Sendai Denryoku Hall. "Shichijushichi Starlight Symphony" charity concert

2019March 11th: Appears in "'Wa' de Kanaderu Higashi-Nihon Ouen Concert 2019 in Tokyo" (Bunkamura Orchard Hall).

2020April 7th: Releases the album "Koibito yo" in vinyl (Stereo Sound Publishing) for the first time in 40 years.

2021October: Opens Mayumi Itsuwa Debut 50th Anniversary special website (Sony Music).