======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '221'
                                          'artist'  'Automatic Orchestra'
                                     'text_people'  ''
                                         'release'  'Hi-Fi Sounds for Hounds'
                                           'title'  'At the Handle Bar'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '105.313'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Hi-Fi Sounds for Hounds'
'TBPM' (BPM (beats per minute))                     '105.313'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1957'
'TENC' (Encoded by)                                 'Basic Hip Digital Oddio'
'TIT2' (Title/songname/content description)         'At the Handle Bar'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Automatic Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Automatic Orchestra'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.20 dB'
'TXXX:replaygain_track_peak'                        '0.493370'

========================== row from database ==========================
                                              'id'  766027
                                            'path'  /data/Music/Bulk/0nonmusic/Hi-Fi Sounds for Hounds (San Francisco Records, 1957) [320k]/10 Automatic Orchestra - At the Handle Bar.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  221
                                           'genre'  electronic-unsorted
                                        'filesize'  8880766
                                           'mtime'  1620647450
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic (San Francisco Records, 1957) [320k] 10 electronic unsorted
                                      'tag_artist'  Automatic Orchestra
                                     'tag_release'  Hi-Fi Sounds for Hounds
                                       'tag_title'  At the Handle Bar
                                             'bpm'  105.313
                                    'search_title'  'at':1 'bar':4 'handle':3 'the':2
                                   'search_artist'  'automatic':1 'orchestra':2
                                  'search_release'  'fi':2 'for':5 'hi':1 'hifi':3 'hounds':6 'sounds':4
                                     'search_rest'  '0nonmusic':1 '1957':7,8 '320k':9,10 'electronic':11 'francisco':4 'records':5,6 'san':2,3 'unsorted':12
                                    'search_combo'  '0nonmusic':13 '1957':19,20 '320k':21,22 'at':1A 'automatic':5B 'bar':4A 'electronic':23 'fi':8C 'for':11C 'francisco':16 'handle':3A 'hi':7C 'hifi':9C 'hounds':12C 'orchestra':6B 'records':17,18 'san':14,15 'sounds':10C 'the':2A 'unsorted':24
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620647449.655338  (2021-05-10 13:50:49)
                             'size'  8880766