Soninke was in turn a daughter of the outstanding racemare Sonic Lady who was not, technically, a Thoroughbred as her female ancestry could not be traced to one of the foundation mares of the breed.

[8] Songline began her track career in a contest for previously unraced juveniles over 1400 metres on good ground at Tokyo Racecourse on 20 June when she started the 1.6/1 favourite and finished second to Cool Cat, beaten two lengths by the winner.

Ridden by Genki Maruyama she raced in mid-division before staying on strongly down the centre of the track, overtaking the favourite Tosen Melanie inside the last 200 metres and drawing away to win by three lengths.

[10] On her three-year-old debut Songline was stepped up in class for the Listed Kobai Stakes over 1400 metres at Chukyo Racecourse on 16 January when she was ridden by Christophe Lemaire and went off the 1.9/1 favourite against ten other fillies.

[13] Four weeks after her run in the Oka Sho Songline was matched against male opposition in the Grade 1 NHK Mile Cup in which she was ridden by Kenichi Ikezoe and started at odds of 15.9/1 in an eighteen-runner field.

On 23 October at Tokyo, with Ikezoe in the saddle, Songline contested the Grade 2 Fuji Stakes and started the 2.9/1 favourite against seventeen opponents including the previous Group 1 winners Danon The Kid, Wagnerian and Lauda Sion.

After racing in mid-division she produced a sustained run down the centre of the straight, took the lead 200 metres from the finish and held off the late challenge of Satono Wizard to win by a neck.

[15] On her final run of the year the filly started favourite for the 1400 metre Hanshin Cup in December but ran poorly and finished thirteenth behind Grenadier Guards.

For her first run of 2022, Songline was sent to Saudi Arabia to contest the $1.5 million 1351 Sprint Cup over 1351 meters at King Abdulaziz Racecourse in Riyadh where she was ridden by Lemaire and started 5/1 second favourite behind Naval Crown.

After racing in mid-division she made sustained progress in the straight, got the better of the British filly Happy Romance in the last 100 metres and held of the late run of the American challenger Casa Creed to win by a neck.

The four-year-old Elusive Panther started favourite while the other contenders included Cafe Pharoah, Salios, Danon The Kid, Schnell Meister and Naran Huleg (Takamatsunomiya Kinen).

She made her second appearance in the Victoria Mile over at the Tokyo Racecourse starting as the 66/10 fourth favorite behind Stars on Earth, Namur, and Sodashi, ridden by Keita Tosaki this time.