# Harness Docs > Guides for running your music studio on Harness: scheduling, students, and billing. ## Docs - [Track expenses](https://harnesscalendar.com/docs/accounting/expenses.md): Record what your studio spends so it shows in your reports and Profit & Loss. - [Track mileage](https://harnesscalendar.com/docs/accounting/mileage.md): Add a vehicle and log business trips for your tax records. - [Reports](https://harnesscalendar.com/docs/accounting/reports.md): Build, read, and export a Profit & Loss statement or a transaction report. - [Connect Stripe](https://harnesscalendar.com/docs/billing/connect-stripe.md): Set up online card payments so your invoices carry a pay link. - [Credits](https://harnesscalendar.com/docs/billing/credits.md): Issue an account credit and apply it as a deduction on the next invoice. - [How billing works](https://harnesscalendar.com/docs/billing/how-billing-works.md): Track the money movement of your studio. - [Manage billing accounts](https://harnesscalendar.com/docs/billing/manage-accounts.md): Create or edit an account, and set who's on it and who gets billed. - [Manage invoices](https://harnesscalendar.com/docs/billing/manage-invoices.md): Track the lifecycle of your existing invoices - [Record a payment](https://harnesscalendar.com/docs/billing/record-a-payment.md): Log and track the money you receive. - [Issue a refund](https://harnesscalendar.com/docs/billing/refunds.md): Return money to a payer from an account that's in credit. - [Send an invoice](https://harnesscalendar.com/docs/billing/send-an-invoice.md): Build invoices to send to accounts and get paid. - [Understand your transactions](https://harnesscalendar.com/docs/billing/understand-your-transactions.md): Learn how to read your transactions ledger. - [Annotations](https://harnesscalendar.com/docs/calendar/annotations.md): Paint time overlays on your calendar to mark availability or blocked time. - [Create an event](https://harnesscalendar.com/docs/calendar/create-an-event.md): Add a timed, all-day, or unscheduled event to your calendar - [Manage your calendar](https://harnesscalendar.com/docs/calendar/managing-your-calendar.md): Move, resize, unschedule, and delete events. - [Navigate your calendar](https://harnesscalendar.com/docs/calendar/navigate-your-calendar.md): Move through your calendar and find what's on it. - [Reschedule links](https://harnesscalendar.com/docs/calendar/reschedule-links.md): Find a new time for an existing event with a shareable link. - [Scheduling links](https://harnesscalendar.com/docs/calendar/scheduling-links.md): Share a link for students to book their own times. - [Troubleshooting](https://harnesscalendar.com/docs/calendar/troubleshooting.md): Fix the most common calendar and booking surprises. - [Key concepts](https://harnesscalendar.com/docs/getting-started/key-concepts.md): Learn the core ideas behind how Harness fits together. - [Set up your studio](https://harnesscalendar.com/docs/getting-started/set-up-your-studio.md): Go from a brand-new account to running lessons and getting paid. - [Run your monthly billing](https://harnesscalendar.com/docs/guides/run-your-monthly-billing.md): Run the monthly cycle: what Harness bills for you and what you do by hand. - [Operate a lesson](https://harnesscalendar.com/docs/lessons/operate-a-lesson.md): Take attendance, bill for the lesson, and send notes. - [Accounts](https://harnesscalendar.com/docs/students/accounts-and-students.md): Manage who receives a student's billing and invoice information. - [Add a student](https://harnesscalendar.com/docs/students/add-a-student.md): Add a new student manually. - [Contacts and notifications](https://harnesscalendar.com/docs/students/contacts-and-notifications.md): Manage who is attached to a student and who receives which emails. - [Deactivate a student](https://harnesscalendar.com/docs/students/deactivate-a-student.md): Pause a student for when you no longer teaching them. - [Delete a student](https://harnesscalendar.com/docs/students/delete-a-student.md): Remove a student permanently and scrub their personal info. - [Invite with a link](https://harnesscalendar.com/docs/students/invite-with-a-link.md): Allow students and parents to enroll themselves via shareable link - [Manage your students](https://harnesscalendar.com/docs/students/manage-your-students.md): Find everything you need regarding your students. - [Studio policy](https://harnesscalendar.com/docs/students/studio-policy.md): Write and publish the terms students agree to at sign-up. ## OpenAPI Specs - [openapi](https://harnesscalendar.com/docs/api-reference/openapi.json)