reverse arguments order in `tablature` function to allow piping

I would suggest exchanging the `desc` and `name` argument of the tablature function to allow something like: 

```
c(3, 2, 0, 0, 0, 3) %>% tablature('Gmaj')
```

instead of doing the less "tidyverse-idiomatic":

```
c(3, 2, 0, 0, 0, 3) %>% tablature('Gmaj', . )
```

Thanks for your nice package 😃  !