Minecraft Disco Beacon with Only One Command

summon falling_block ~ ~1 ~ {Block:stone,Time:1,Passengers:[{id:falling_block,Block:redstone_block,Time:1,Passengers:[{id:falling_block,Block:activator_rail,Time:1,Passengers:[{id:commandblock_minecart,Command:"gamerule commandBlockOutput false"},{id:commandblock_minecart,Command:"fill ~2 ~-3 ~-2 ~8 ~ ~2 stained_hardened_clay 3 hollow"},{id:commandblock_minecart,Command:"fill ~2 ~-2 ~-2 ~8 ~-1 ~2 glass 0 0 stained_hardened_clay"},{id:commandblock_minecart,Command:" scoreboard objectives add db_timer dummy"},{id:commandblock_minecart,Command:" give @p spawn_egg 1 0 {HideFlags:1,ench:[{id:34,lvl:1}],display:{Name:\"Disco Beacon\"},EntityTag:{id:\"minecraft:bat\",Tags:[\"db_spawn\"]}}"},{id:commandblock_minecart,Command:" give @p spawn_egg 1 0 {display:{Name:\"Kill Disco Beacon\"},EntityTag:{id:\"minecraft:bat\",Tags:[\"db_kill\"]}} "},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a [\"\",{\"text\":\"Check out my \"},{\"text\":\"YT-Channel \",\"color\":\"dark_red\"},{\"text\":\"right -> \",\"color\":\"none\"},{\"text\":\"HERE\",\"color\":\"green\",\"bold\":true,\"underlined\":true,\"clickEvent\":{\"action\":\"open_url\",\"value\":\"https://www.YouTube.com/TheCreativeSimon\"}}]"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:" tellraw @a {\"text\":[\"\"]}"},{id:commandblock_minecart,Command:"setblock ~1 ~-2 ~ wall_sign 4 0 {Text1:\"{\\\"text\\\":\\\"============\\\"}\",Text2:\"{\\\"text\\\":\\\"Click to destroy\\\"}\",Text3:\"{\\\"text\\\":\\\"this machine\\\"}\",Text4:\"{\\\"text\\\":\\\"============\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-1 ~-2 ~7 ~2 ~2 air\\\"}}\"}"},{id:commandblock_minecart,Command:"setblock ~1 ~-1 ~ wall_sign 4 0 {Text1:\"{\\\"text\\\":\\\"\\\"}\",Text2:\"{\\\"text\\\":\\\"Disco Beacon\\\"}\",Text3:\"{\\\"text\\\":\\\"by TCSimon\\\"}\",Text4:\"{\\\"text\\\":\\\"\\\"}\"}"},{id:commandblock_minecart,Command:"fill ~3 ~-2 ~-1 ~7 ~-1 ~1 chain_command_block 5"},{id:commandblock_minecart,Command:"setblock ~3 ~-1 ~1 chain_command_block 2"},{id:commandblock_minecart,Command:"fill ~7 ~-1 ~1 ~4 ~-1 ~1 chain_command_block 4"},{id:commandblock_minecart,Command:"setblock ~7 ~-2 ~1 chain_command_block 1"},{id:commandblock_minecart,Command:"setblock ~3 ~-2 ~ chain_command_block 3"},{id:commandblock_minecart,Command:"fill ~7 ~-2 ~ ~4 ~-2 ~ chain_command_block 4"},{id:commandblock_minecart,Command:"setblock ~7 ~-2 ~-1 chain_command_block 3"},{id:commandblock_minecart,Command:"setblock ~3 ~-2 ~-1 repeating_command_block 5"},{id:commandblock_minecart,Command:"blockdata ~3 ~-1 ~1 {auto:1,Command:\"scoreboard players reset @e[tag=db_placer,score_db_timer_min=110,score_db_timer=110] db_timer\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-1 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=110,score_db_timer=110] ~ ~ ~ setblock ~ ~ ~ stained_glass 14\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-1 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=100,score_db_timer=100] ~ ~ ~ setblock ~ ~ ~ stained_glass 13\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-1 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=90,score_db_timer=90] ~ ~ ~ setblock ~ ~ ~ stained_glass 11\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-1 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=80,score_db_timer=80] ~ ~ ~ setblock ~ ~ ~ stained_glass 10\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=70,score_db_timer=70] ~ ~ ~ setblock ~ ~ ~ stained_glass 9\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=60,score_db_timer=60] ~ ~ ~ setblock ~ ~ ~ stained_glass 6\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=50,score_db_timer=50] ~ ~ ~ setblock ~ ~ ~ stained_glass 5\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-2 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=40,score_db_timer=40] ~ ~ ~ setblock ~ ~ ~ stained_glass 4\"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-2 ~1 {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=30,score_db_timer=30] ~ ~ ~ setblock ~ ~ ~ stained_glass 3\"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-2 ~ {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=20,score_db_timer=20] ~ ~ ~ setblock ~ ~ ~ stained_glass 2\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-2 ~ {auto:1,Command:\"execute @e[tag=db_placer,score_db_timer_min=10,score_db_timer=10] ~ ~ ~ setblock ~ ~ ~ stained_glass 1\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~ {auto:1,Command:\"scoreboard players add @e[tag=db_placer] db_timer 1\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~ {auto:1,Command:\"kill @e[tag=db_kill]\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~ {auto:1,Command:\"execute @e[tag=db_kill] ~ ~ ~ kill @e[tag=db_placer,r=2]\"}"},{id:commandblock_minecart,Command:"blockdata ~7 ~-2 ~-1 {auto:1,Command:\"execute @e[tag=db_kill] ~ ~ ~ execute @e[tag=db_placer,r=2] ~ ~ ~ fill ~ ~ ~ ~ ~-1 ~ air 0\"}"},{id:commandblock_minecart,Command:"blockdata ~6 ~-2 ~-1 {auto:1,Command:\"kill @e[tag=db_spawn]\"}"},{id:commandblock_minecart,Command:"blockdata ~5 ~-2 ~-1 {auto:1,Command:\"execute @e[tag=db_spawn] ~ ~ ~ summon armor_stand ~ ~1 ~ {Invisible:1,NoGravity:1,Marker:1,Tags:[\\\"db_placer\\\"]}\"}"},{id:commandblock_minecart,Command:"blockdata ~4 ~-2 ~-1 {auto:1,Command:\"execute @e[tag=db_spawn] ~ ~ ~ setblock ~ ~ ~ beacon\"}"},{id:commandblock_minecart,Command:"blockdata ~3 ~-2 ~-1 {auto:1,Command:\"execute @e[tag=db_spawn] ~ ~ ~ fill ~-1 ~-1 ~-1 ~1 ~-1 ~1 iron_block\"}"},{id:commandblock_minecart,Command:"setblock ~ ~ ~1 command_block 0 0 {Command:\"fill ~ ~-3 ~-1 ~ ~ ~ air\"}"},{id:commandblock_minecart,Command:"setblock ~ ~-1 ~1 redstone_block"},{id:commandblock_minecart,Command:"kill @e[type=commandblock_minecart,r=1]"}]}]}]}