Can't down load garage band on Mac book air?

Can't down load garage band on Mac book air?MacBook Air (13-inch, 2017)

Model Name: MacBook Air

  Model Identifier: MacBookAir7,2

  Processor Name: Dual-Core Intel Core i5

  Processor Speed: 1.8 GHz

  Number of Processors: 1

  Total Number of Cores: 2

  L2 Cache (per Core): 256 KB

  L3 Cache: 3 MB

  Hyper-Threading Technology: Enabled

  Memory: 8 GB

  System Firmware Version: 489.0.0.0.0

  OS Loader Version: 540.120.3~37

  SMC Version (system): 2.27f2

  Serial Number (system): C1MTR3KRJ1WK

  Hardware UUID: 6ABFCDBE-1964-5029-B948-805DA3CD5C5F

  Provisioning UDID: 6ABFCDBE-1964-5029-B948-805DA3CD5C5F

is it im possible?