# Single multi-line equation with comments on rows

I can't find a way to write a multi-line equation, which I would later refer to as on single equation, and write comments on some of rows.

The thing I want is pretty much like here:

Multi-row text comment in align environment

and here:

Show equation number only once in align environment

Is it possible to combine these?

Instead of align, you may use aligned within an equation environment.

# Code

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\label{my eq} \begin{aligned} a&=b+c &&\text{note 1} \\ &=d+e+f&&\text{note 2} \end{aligned}

I wrote \eqref{my eq}.
\end{document}