======================== unified (from filesystem) ========================
                                         'bitrate'  '234.522'
                                        'duration'  '177'
                                          'artist'  'LFO'
                                     'text_people'  ''
                                         'release'  'frequencies'
                                           'title'  'tan ta ra'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'techno', 'electronic', 'warp', 'idm']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '110.1'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'WARP003'
'COMM:iTunNORM:eng'                                 (' 000000CB 000000E7 0000062A 000006DD 0001F8F9 0001F8F9 00003E95 00004362 '
 '00024615 00024615')
'TALB' (Album/Movie/Show title)                     'frequencies'
'TBPM' (BPM (beats per minute))                     '110.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDEN' (Encoding time)                              '2002-01-05 23:01:26'
'TDRC' (Recording time)                             '1991'
'TDTG' (Tagging time)                               '2002-01-06 01:56:21'
'TENC' (Encoded by)                                 'lame version 3.91 (alpha 1, dec 23 2001 18:15:25) (http://www.mp3dev.org/)'
'TIT2' (Title/songname/content description)         'tan ta ra'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'cdparanoia III release 9.8 (March 23, 2001)'
'TOWN' (File owner/licensee)                        'CrazyFoam'
'TPE1' (Lead performer(s)/Soloist(s))               'LFO'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'techno', 'electronic', 'warp', 'idm']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.81 dB'
'TXXX:replaygain_track_peak'                        '0.779911'

========================== row from database ==========================
                                              'id'  1337281
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/LFO/freqencies/07 - LFO - tan ta ra.mp3
                                         'working'  None
                                         'bitrate'  234
                                    'duration_sec'  177
                                           'genre'  electronic-th-techno
                                        'filesize'  5215642
                                           'mtime'  1620563749
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats freqencies 07 electronic th techno
                                      'tag_artist'  LFO
                                     'tag_release'  frequencies
                                       'tag_title'  tan ta ra
                                             'bpm'  110.1
                                    'search_title'  'ra':3 'ta':2 'tan':1
                                   'search_artist'  'lfo':1
                                  'search_release'  'frequencies':1
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'beats':5 'electronic':7 'freqencies':6 'harder':4 'house':3 'techno':9 'th':8
                                    'search_combo'  '00poprockelectronic':6 '00techno':7 'beats':10 'electronic':12 'freqencies':11 'frequencies':5C 'harder':9 'house':8 'lfo':4B 'ra':3A 'ta':2A 'tan':1A 'techno':14 'th':13
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-chart-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-other-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'techno', 'electronic', 'warp', 'idm']
                                        'tag_date'  1991
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620563749.0568323  (2021-05-09 14:35:49)
                             'size'  5215642