======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '128'
                                          'artist'  'Link Wray & His Ray-Men'
                                     'text_people'  ''
                                         'release'  "Rock 'N' Roll Era - '50s - Las"
                                           'title'  'Raw-Hide'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '110.483'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-167 POS 23'
'COMM:ID3v1 Comment:XXX'                            '59-167 POS 23'
'TALB' (Album/Movie/Show title)                     "Rock 'N' Roll Era - '50s - Las"
'TBPM' (BPM (beats per minute))                     '110.483'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Raw-Hide'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Link Wray & His Ray-Men'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'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'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.70 dB'
'TXXX:replaygain_track_peak'                        '0.364969'

========================== row from database ==========================
                                              'id'  1445733
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-167 - Link Wray & His Ray-Men - Raw-Hide.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  128
                                           'genre'  prerock-unsorted
                                        'filesize'  5136384
                                           'mtime'  1621698400
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 167 prerock unsorted
                                      'tag_artist'  Link Wray & His Ray-Men
                                     'tag_release'  Rock 'N' Roll Era - '50s - Las
                                       'tag_title'  Raw-Hide
                                             'bpm'  110.483
                                    'search_title'  'hide':2 'raw':1 'rawhide':3
                                   'search_artist'  'his':3 'link':1 'men':5 'ray':4 'raymen':6 'wray':2
                                  'search_release'  '50s':6,7 'era':5 'las':8 'n':2,3 'rock':1 'roll':4
                                     'search_rest'  '00oldiepop':5 '167':8 '1959':6 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':22 '167':25 '1959':23 '50s':15C,16C '59':24 'country':21 'era':14C 'exotica':19 'hide':2A 'his':6B 'jazz':18 'las':17C 'link':4B 'men':8B 'n':11C,12C 'oldies':20 'prerock':26 'raw':1A 'rawhide':3A 'ray':7B 'raymen':9B 'rock':10C 'roll':13C 'unsorted':27 'wray':5B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11B
                                           '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-2', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698399.9560833  (2021-05-22 17:46:39)
                             'size'  5136384