======================== unified (from filesystem) ========================
                                         'bitrate'  '164.321'
                                        'duration'  '149'
                                          'artist'  'Townes Van Zandt'
                                     'text_people'  ''
                                         'release'  'Townes Van Zandt'
                                           'title'  'Columbine'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'alt country', 'americana', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk, world, & country', 'folk rock', 'country rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '10'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '91.062'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '7A08180A'
'COMM:ID3v1 Comment:XXX'                            '7A08180A'
'TALB' (Album/Movie/Show title)                     'Townes Van Zandt'
'TBPM' (BPM (beats per minute))                     '91.062'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Columbine'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Townes Van Zandt'
'TRCK' (Track number/Position in set)               '2/10'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk, world, & country', 'folk rock', 'country rock']
'TXXX:lastfmtags'                                   ['country', 'alt country', 'americana', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.81 dB'
'TXXX:replaygain_track_peak'                        '0.797907'

========================== row from database ==========================
                                              'id'  1386990
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Townes Van Zandt/Texas Troubadour - Disc 2/Townes Van Zandt - Columbine - 02.mp3
                                         'working'  None
                                         'bitrate'  164
                                    'duration_sec'  149
                                           'genre'  ifs-songwriter
                                        'filesize'  3067895
                                           'mtime'  1628356256
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Texas Troubadour Disc 2 02 ifs songwriter
                                      'tag_artist'  Townes Van Zandt
                                     'tag_release'  Townes Van Zandt
                                       'tag_title'  Columbine
                                             'bpm'  91.062
                                    'search_title'  'columbine':1
                                   'search_artist'  'townes':1 'van':2 'zandt':3
                                  'search_release'  'townes':1 'van':2 'zandt':3
                                     'search_rest'  '00singer':1 '2':7 'disc':6 'eos':3 'ifs':8 'songwriter':2 'texas':4 'troubadour':5
                                    'search_combo'  '00singer':8 '2':14 'columbine':1A 'disc':13 'eos':10 'ifs':15 'songwriter':9 'texas':11 'townes':2B,5C 'troubadour':12 'van':3B,6C 'zandt':4B,7C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'alt country', 'americana', 'folk', 'singer songwriter']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'folk, world, & country', 'folk rock', 'country rock']

============================== file details ==============================
                                           'mtime'  1628356256.4108129  (2021-08-07 19:10:56)
                             'size'  3067895