3 sentences

1. 这首歌音太高，我唱不上去。

   zhè shǒu gē yīn tài gāo, wǒ chàng bù shàng​qù.

   The notes in this song are too high for me to sing.

   Source: Dong Chinese Dictionary

2. 这首歌的调太高了，我唱不上去。

   zhè shǒu gē de diào tài gāo le, wǒ chàng bù shàng​qù.

   The key of this song is too high for me to sing.

   Source: Dong Chinese Dictionary

3. 这首歌调子起得太高，我实在唱不上去。

   zhè shǒu gē diào​zi qǐ de tài gāo, wǒ shí​zài chàng bù shàng​qù.

   The key of this song is too high for me to reach the notes.

   Source: Dong Chinese Dictionary