I made a command that gives you ever music disc. It is useful if you are making something that involves music and you want to get every disc. Here is the command:

summon falling_block ~ ~1 ~ {Time:1,BlockState:{Name:redstone_block},Passengers:[{id:armor_stand,Health:0,Passengers:[{id:falling_block,Time:1,BlockState:{Name:activator_rail},Passengers:[{id:command_block_minecart,Command:"data merge block ~ ~-2 ~ {auto:0}"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_13"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_cat"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_blocks"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_chirp"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_far"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_mall"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_mellohi"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_stal"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_strad"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_ward"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_11"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_wait"},{id:command_block_minecart,Command:"/give @p minecraft:music_disc_pigstep"},{id:command_block_minecart,Command:"setblock ~ ~1 ~ command_block{auto:1,Command:\"fill ~ ~ ~ ~ ~-2 ~ air\"}"},{id:command_block_minecart,Command:"kill @e[type=command_block_minecart,distance=..1]"}]}]}]}