======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '129'
                                          'artist'  'Speedy West'
                                     'text_people'  'Speedy West'
                                         'release'  'Steel Guitar'
                                           'title'  "This Ain't the Blues"
                                           '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-2', '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'  '7'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'ifs-folk-steelguitar;mi-guitar'
                                             'bpm'  '126.3'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 0000094F 0000094F 000103C6 000103C6 0000EF97 0000EF97 00007362 00007362 '
 '000087B6 000087B6')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000007F0 0000000000573800 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Steel Guitar'
'TBPM' (BPM (beats per minute))                     '126.3'
'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)         "This Ain't the Blues"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Speedy West'
'TRCK' (Track number/Position in set)               '7'
'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'                                      '2'
'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'                        '+2.47 dB'
'TXXX:replaygain_track_peak'                        '0.444595'

========================== row from database ==========================
                                              'id'  1500829
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/1960 - speedy west - steel guitar/07 this ain_t the blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  129
                                           'genre'  ifs-folk-steelguitar;mi-guitar
                                        'filesize'  3114324
                                           'mtime'  1637330694
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1960 speedy west steel guitar 07 this ain_t blues ifs folk steelguitar;mi guitar
                                      'tag_artist'  Speedy West
                                     'tag_release'  Steel Guitar
                                       'tag_title'  This Ain't the Blues
                                             'bpm'  126.3
                                    'search_title'  'ain':2 'aint':4 'blues':6 't':3 'the':5 'this':1
                                   'search_artist'  'speedy':1 'west':2
                                  'search_release'  'guitar':2 'steel':1
                                     'search_rest'  '1960':1 'ain':7 'blues':9 'folk':11 'guitar':5 'ifs':10 'mi':13,15 'speedy':2 'steel':4 'steelguitar':12,14 't':8 'this':6 'west':3
                                    'search_combo'  '1960':11 'ain':2A,17 'aint':4A 'blues':6A,19 'folk':21 'guitar':10C,15 'ifs':20 'mi':23,25 'speedy':7B,12 'steel':9C,14 'steelguitar':22,24 't':3A,18 'the':5A 'this':1A,16 'west':8B,13
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  3A
                                           '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-2', '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'  1637330693.7479336  (2021-11-19 15:04:53)
                             'size'  3114324