  Fix $t\in [1,\infty]$. Let $S$ be an atomic commutative semigroup and, for
all $x\in S$, let $\mathscr{L}_t(S):=\{\|f\|_t:f\in Z(x)\}$ be the "$t$-length
set" of $x$ (using the standard $l_p$-space definition of $\|\cdot\|_t$). The
$t$-Delta set of $x$ (denoted $\Delta_t(S)$) is the set of gaps between
consecutive elements of $\mathscr{L}_t(S)$; the Delta set of $S$ is then
defined by $\bigcup\limits_{x\in S} \Delta_t(S)$. Though all existing
literature on this topic considers the $1$-Delta set, recent results on the
$t$-elasticity of Numerical Semigroups (Behera et. al.) for $t\neq 1$ have
brought attention to other invariants, such as the $t$-Delta set for $t\neq 1$,
as well. Here we characterize $\Delta_t(S)$ for all numerical semigroups
$\langle a_1,a_2\rangle$ and all $t\in(1,\infty)$ outside a small family of
extremal examples. We also determine the cardinality and describe the
distribution of that aberrant family.
