{title: Keys and Capo}
{key: D}
{capo: 2}
{c: Key: %{key}, Actual: %{key_actual}, From: %{key_from}}
[D]Hi
{transpose 3}
{c: Key: %{key}, Actual: %{key_actual}, From: %{key_from}}
[D]Hi
{transpose}
{c: Key: %{key}, Actual: %{key_actual}, From: %{key_from}}
[D]Hi
