======================== unified (from filesystem) ========================
                                         'bitrate'  '119.949'
                                        'duration'  '242'
                                          'artist'  'Link Wray'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock & Guitar'
                                           'title'  'Black River Swamp'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-2', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['surf', 'instrumental', 'surf rock', 'rock and roll', 'rockabilly', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '142.7'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock & Guitar'
'TBPM' (BPM (beats per minute))                     '142.7'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'Black River Swamp'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Link Wray'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['surf', 'instrumental', 'surf rock', 'rock and roll', 'rockabilly', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.832764'
'TXXX:youtube'                                      'ozwlKJO7iuw'

========================== row from database ==========================
                                              'id'  1477528
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockGuitar/Link Wray - Black River Swamp 1971-ozwlKJO7iuw.mp3
                                         'working'  None
                                         'bitrate'  119
                                    'duration_sec'  242
                                           'genre'  ifs-songwriter
                                        'filesize'  3647298
                                           'mtime'  1637330697
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockGuitar 1971 ozwlKJO7iuw ifs songwriter
                                      'tag_artist'  Link Wray
                                     'tag_release'  Dimitri - Folk, Rock & Guitar
                                       'tag_title'  Black River Swamp
                                             'bpm'  142.7
                                    'search_title'  'black':1 'river':2 'swamp':3
                                   'search_artist'  'link':1 'wray':2
                                  'search_release'  'dimitri':1 'folk':2,3 'guitar':5 'rock':4
                                     'search_rest'  '1971':2 'folk':6 'folkrockguitar':1 'guitar':8 'ifs':4 'kjo7iuw':10 'ozwl':9 'ozwlkjo7iuw':3 'rock':7 'songwriter':5
                                    'search_combo'  '1971':12 'black':1A 'dimitri':6C 'folk':7C,8C,16 'folkrockguitar':11 'guitar':10C,18 'ifs':14 'kjo7iuw':20 'link':4B 'ozwl':19 'ozwlkjo7iuw':13 'river':2A 'rock':9C,17 'songwriter':15 'swamp':3A 'wray':5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['surf', 'instrumental', 'surf rock', 'rock and roll', 'rockabilly', 'rock']
                                        'tag_date'  1971
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637330696.5028048  (2021-11-19 15:04:56)
                             'size'  3647298