Which West African instrument is the banjo descended from?
Two lines are argued and the corpus authors both at its weakest verification rather than choosing. The akonting case rests heavily on a right-hand technique documented only in the twentieth century, and convergence has not been excluded. This Journey presents the pair and does not resolve it; an interface that draws one line more heavily than the other has overruled the record.
Did the drum prohibitions actually produce a string-led, percussion-poor blues?
Widely argued and nowhere demonstrated. The block that carries the claim also names the alternatives — which African regions people were taken from, Protestant against Catholic religious practice, plantation scale — and states that they pull in the same direction and cannot be separated cleanly. The Journey makes the argument in the open and marks it as one.
When does the European lute stop being an oud?
The transmission is dated at one end and not the other. The arrival at Córdoba is documented; the emergence of a distinguishable European instrument is inferred from iconography that cannot separate the two until the late thirteenth century, and the addition of frets has no first instance anyone can name. Four centuries sit inside that gap and the Journey leaves them there.
How much of the surviving Maghrebi repertoire is genuinely Andalusi?
A live scholarly question that oral transmission makes very hard to settle: later local composition attributed to the older tradition cannot reliably be separated from continuous practice. The Journey asserts that the repertoire was displaced and maintained, and asserts nothing about how much of it is original.
Who does a field recording belong to?
Genuinely open, and the Journey ends on it rather than answering it. The collections preserved performances no company would have paid to cut; the people who sang into the microphone rarely held any rights in the result; and the deposit rights over much of the material sit with a collector's estate and a national library.
Where do the two corridors actually run?
Atlas can answer this for points and not for passages. Five objects in this Journey carry a coordinate — Córdoba, New Orleans, Congo Square, Havana, Rio de Janeiro — and every corridor, region and route in it carries none. The map can therefore show where things arrived and never how they travelled. That is a limit of the canonical model rather than of the scholarship, and it should be visible to the reader instead of disguised by a drawn line.