======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '160'
                                          'artist'  'Speedy West'
                                     'text_people'  'Speedy West'
                                         'release'  'Steel Guitar'
                                           'title'  "Steelin' Moonlight"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'country', 'blue', 'instrumental', 'rockabilly']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'ifs-folk-steelguitar;mi-guitar'
                                             'bpm'  '102.9'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000003F6 000003F6 00004D64 00004D64 0002342F 0002342F 00006AEE 00006AEE '
 '00014EE5 00014EE5')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008F0 00000000006BC800 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Steel Guitar'
'TBPM' (BPM (beats per minute))                     '102.9'
'TCOM' (Composer)                                   'Speedy West'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-folk-steelguitar', 'mi-guitar']
'TDRC' (Recording time)                             '1960'
'TENC' (Encoded by)                                 'iTunes v6.0.1.3'
'TIT2' (Title/songname/content description)         "Steelin' Moonlight"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Speedy West'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['guitar', 'country', 'blue', 'instrumental', 'rockabilly']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.18 dB'
'TXXX:replaygain_track_peak'                        '0.591100'

========================== row from database ==========================
                                              'id'  1515709
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/1960 - speedy west - steel guitar/09 steelin_ moonlight.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  160
                                           'genre'  ifs-folk-steelguitar;mi-guitar
                                        'filesize'  3847840
                                           'mtime'  1637330694
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1960 speedy west steel guitar 09 steelin_ moonlight ifs folk steelguitar;mi guitar
                                      'tag_artist'  Speedy West
                                     'tag_release'  Steel Guitar
                                       'tag_title'  Steelin' Moonlight
                                             'bpm'  102.9
                                    'search_title'  'moonlight':3 'steelin':1,2
                                   'search_artist'  'speedy':1 'west':2
                                  'search_release'  'guitar':2 'steel':1
                                     'search_rest'  '1960':1 'folk':9 'guitar':5 'ifs':8 'mi':11,13 'moonlight':7 'speedy':2 'steel':4 'steelguitar':10,12 'steelin':6 'west':3
                                    'search_combo'  '1960':8 'folk':16 'guitar':7C,12 'ifs':15 'mi':18,20 'moonlight':3A,14 'speedy':4B,9 'steel':6C,11 'steelguitar':17,19 'steelin':1A,2A,13 'west':5B,10
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'country', 'blue', 'instrumental', 'rockabilly']
                                        'tag_date'  1960
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1637330693.808516  (2021-11-19 15:04:53)
                             'size'  3847840