Munetada is one of the Ko- smiths, the earliest generation of the Fukuoka school that arose in early- . The swordbooks place him under the Fukuoka around the Kenryaku era, and one of his Jūyō Bijutsuhin entries identifies him with the Munetada recorded in the as working in those years, about 1211 to 1213. He belongs with Sukemune, Naomune, Muneyoshi, Narimune, Shigehisa and Sadazane among the early hands the swordbooks call Ko-, working before the school's great flowering under Norimune, Sukezane and Yoshifusa, when the full clove-flower temper of the mid- prime had not yet arrived. The published sources fix his recognized shape to a single type and state it plainly: his forms 'are limited to those of slender build with a compact , possessing an old-fashioned charm'.
His hand is read first in that shape and in the beneath it. Over an mixed with that stands open overall, the carries with entering, and across it rises the reflection of old steel. On his most fully described that reflection comes as a , the speckled patchy form, and the published sources make a particular point of it: the dark banded areas 'reliably rise high, clearly crossing over the '. This is not decoration but a dating tell, the very feature by which the judges secure his early- origin. Where the forging tightens into the only grows clearer, and on the shortened recorded before the war the reads as an of moist quality with a distinct standing in the .
The temper stays within the quieter compass of the early school. His is a mixed with and a slight tendency, the small-scale clove pattern of the Ko- rather than the towering heads of the prime. Above the it tightens to a tone, and through it run and , the deep, adhering well, with and appearing here and there. The is a shallow settling into a , on the narrower signed simply straight to a small round. Even at its busiest the line is held in and small , the activity carried in feet and leaves rather than in great clusters, the calm idiom the published sources separate from the later brilliance of his school.
Within so small a surviving body the judges still read two registers carried by one hand. The first is flamboyant, conspicuous for 'somewhat larger clove-heads being conspicuous', which they describe as 'a flamboyant interpretation'; they note that such a manner is occasionally seen among Ko- and cite the by Shigehisa as a parallel. The second is the quieter -toned of his narrower signed pieces, deep in and . The two are bound together by the , the -crossing that fixes the period whichever face the temper turns. One Jūyō Bijutsuhin is recorded as 'by the hand as the Munetada blade listed immediately above'の宗忠と同作である), one of the few places where two of his blades can be set side by side.
What separates him from his neighbours is exactly what the judges name. He is set apart from the full-size flamboyant of the school's mid- prime by the small scale of his clove pattern and by his slender, shape, never the broad -leaning forms of the height of Fukuoka. From the plainer smiths he is held apart by the gathering of on his edge and by the brightness and high reach of his . He stands at the threshold of the most brilliant of the traditions, the quiet root from which Fukuoka, Yoshioka and Katayama would grow, his work keeping the old colour of its period while already gathering the clove that the school would carry to its height.
For the collector he is a rare early name. Fujishiro grades him Jō-jō , and the Tōkō Taikan values his work in the upper range. He has no National Treasures; the published sources hold that 'reliably authentic signed work of Munetada survives in only two or three examples', and call the manner of his signature exceptionally fine. His record runs instead through one Important Cultural Property, one and one , with three signed designated Jūyō Bijutsuhin before the war. The judges call one shortened signed 'an excellent work of Munetada showing superior workmanship'. His blades carry their own provenance: one descended in the Shimazu family, and another was among the cherished swords of Suga Saneshū, a Shōnai-domain retainer on close terms with Saigō Takamori. With only a pair of his blades in the and tiers, a signed Ko- Munetada comes to light only seldom, and a privately held example is a notable thing for a collector to encounter, a document of how the began.