======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '259'
                                          'artist'  'Roy Orbison'
                                     'text_people'  ''
                                         'release'  'Number 1 Hits CD1'
                                           'title'  'Oh Pretty Woman'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['60s', 'rock', 'rockabilly', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '128.414'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Number 1 Hits CD1'
'TBPM' (BPM (beats per minute))                     '128.414'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Oh Pretty Woman'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Roy Orbison'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '122,210'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '18'
'TXXX:lastfmtags'                                   ['60s', 'rock', 'rockabilly', 'oldies', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.18 dB'
'TXXX:replaygain_track_peak'                        '0.694378'

========================== row from database ==========================
                                              'id'  1407704
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Number 1 hits cd 1/18 Roy Orbison - Oh Pretty Woman.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  259
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  6229519
                                           'mtime'  1621853887
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat hits cd 18 electronic generic or radio dance
                                      'tag_artist'  Roy Orbison
                                     'tag_release'  Number 1 Hits CD1
                                       'tag_title'  Oh Pretty Woman
                                             'bpm'  128.414
                                    'search_title'  'oh':1 'pretty':2 'woman':3
                                   'search_artist'  'orbison':2 'roy':1
                                  'search_release'  '1':2 'cd1':4 'hits':3 'number':1
                                     'search_rest'  '00poprockelectronic':1 '18':7 'cd':6 'dance':3 'electronic':8 'generic':2 'hits':5 'or':9 'radio':10 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '1':7C '18':16 'cd':15 'cd1':9C 'dance':12 'electronic':17 'generic':11 'hits':8C,14 'number':6C 'oh':1A 'or':18 'orbison':5B 'pretty':2A 'radio':19 'roy':4B 'trapbeat':13 'woman':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'rock', 'rockabilly', 'oldies', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853887.4054248  (2021-05-24 12:58:07)
                             'size'  6229519