Making Octavia (Music A) requires the corresponding three parts and the Mandachord.

War Armor:

Obtained by completing the series of tasks "Octavia's Hymn".

The blueprint requires: Octavia's head neurophoton, Octavia's body, Octavia's system, Mandachord, and 25,000 star coins. Manufacturing takes 72 hours.

Mandachord:

Obtained through the process of "Collecting parts of the "Mandachord"" in the mission "Octavia's Hymn".

The blueprint requires: Mandachord body, Mandachord fingerboard, Mandachord bridge, 3x Amorphous Alloy, and 25,000 Star Coins. It takes 30 minutes to make.

Head Neurophotonic Unit:

The blueprint can be obtained through the "Lunar Music Chamber".

The blueprint requires: 1,000x Oxium Alloy, 2,600x Biomass, 4,800x Aggregation Rod, 5x Neural Sensors, and 15,000 Star Coins. It takes 12 hours to make.

Machine:

There is a chance to obtain the blueprint by completing Round C of "Orokin Ruins·Survival Mission".

The blueprint requires: 6,000x Aggregation Rod, 1,500 Biomass, 25,000x Recycled Metal, 3x Neurons, and 15,000 Star Coins. It takes 12 hours to make.

System:

There is a chance to obtain the blueprint by finding the Orokin storage compartment in the "Moon Annihilation" mission.

The blueprint requires: 2,000x Kuva, 3,000x Circuit Board, 20x Amorphous Alloy, 5x Orokin Cells, and 15,000 Star Coins. It takes 12 hours to make.