1.14.4 Combine Front, Left & Up Vector to read Pitch, Yaw & Roll for a Armor stand

I'm making a system to import nolimits2 tracks into minecraft and let the armorstand follow the track and that works but i didn't find out how to convert this vectors:

• "FrontX" - The x-component of a normalized tangent vector pointing in the front direction (ride direction) of the virtual car moving along the spline.
• "FrontY" - The y-component of a normalized tangent vector pointing in the front direction (ride direction) of the virtual car moving along the spline.
• "FrontZ" - The z-component of a normalized tangent vector pointing in the front direction (ride direction) of the virtual car moving along the spline.
• "LeftX" - The x-component of a normalized binormal vector pointing in the left direction of the virtual car moving along the spline.
• "LeftY" - The y-component of a normalized binormal vector pointing in the left direction of the virtual car moving along the spline.
• "LeftZ" - The z-component of a normalized binormal vector pointing in the left direction of the virtual car moving along the spline.
• "UpX" - The x-component of a normalized normal vector pointing in the up direction of the virtual car moving along the spline.
• "UpY" - The y-component of a normalized normal vector pointing in the up direction of the virtual car moving along the spline.
• "UpZ" - The z-component of a normalized normal vector pointing in the up direction of the virtual car moving along the spline.

into 1 pitch value, 1 yaw value and 1 roll value. Can anyone help me with this problem?