Question: I need a tool that can transcribe audio and MIDI files into sheet music, do you know of any?

Klangio is an AI-powered music transcription service that can convert audio files or YouTube video links into sheet music, MIDI and MusicXML files. It has instrument-specific tools like Piano2Notes and Guitar2Tabs, and you can download in a variety of formats. The service is easy to use and geared for musicians of all skill levels, with a variety of pricing options including a free trial.

ScoreCloud uses AI technology to transcribe audio recordings into sheet music with a minimal amount of human input. It can transcribe both audio and MIDI files and has powerful editing and syncing abilities. ScoreCloud also has an iPhone and iPad app, ScoreCloud Express, so you can capture ideas on the go and sync them with your account. The software is geared for a wide range of people, including musicians, students and teachers.

Frettable is another good option for musicians who want to turn recordings of their instruments into sheet music and MIDI files. It has features like MIDI instrument conversion, cloud storage and collaboration abilities. It's available as a desktop web browser app and mobile app, and Frettable has a variety of pricing tiers for everything from casual users to serious musicians.