Add populate script and artist api

back/prisma/migrations/20221023094610_/migration.sql

@@ -0,0 +1,10 @@
+/*
+  Warnings:
+
+  - Added the required column `midiPath` to the `Song` table without a default value. This is not possible if the table is not empty.
+  - Added the required column `musicXmlPath` to the `Song` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE "Song" ADD COLUMN     "midiPath" TEXT NOT NULL,
+ADD COLUMN     "musicXmlPath" TEXT NOT NULL;

back/prisma/migrations/20221024161556_dev/migration.sql

@@ -0,0 +1,8 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[name]` on the table `Album` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateIndex
+CREATE UNIQUE INDEX "Album_name_key" ON "Album"("name");

back/prisma/migrations/20221024170544_/migration.sql

@@ -0,0 +1,12 @@
+/*
+  Warnings:
+
+  - A unique constraint covering the columns `[name]` on the table `Artist` will be added. If there are existing duplicate values, this will fail.
+  - A unique constraint covering the columns `[name]` on the table `Genre` will be added. If there are existing duplicate values, this will fail.
+
+*/
+-- CreateIndex
+CREATE UNIQUE INDEX "Artist_name_key" ON "Artist"("name");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Genre_name_key" ON "Genre"("name");