======================== unified (from filesystem) ========================
                                         'bitrate'  '236.453'
                                        'duration'  '258'
                                          'artist'  'Kettel'
                                     'text_people'  ''
                                         'release'  'Through Friendly Waters'
                                           'title'  'Through Friendly Waters'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'Q-BUSY-2', 'q-bass-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '94.021'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Through Friendly Waters'
'TBPM' (BPM (beats per minute))                     '94.021'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Through Friendly Waters'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kettel'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-BUSY'                                       '2'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'experimental', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.26 dB'
'TXXX:replaygain_track_peak'                        '0.552281'

========================== row from database ==========================
                                              'id'  982673
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0calmer/Kettel/kettel-through_friendly_waters-2005-elu/05-kettel-through_friendly_waters-elu.mp3
                                         'working'  None
                                         'bitrate'  236
                                    'duration_sec'  258
                                           'genre'  electronic
                                        'filesize'  7652372
                                           'mtime'  1636912176
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0calmer kettel through_friendly_waters 2005 elu 05 kettel through_friendly_waters elu electronic
                                      'tag_artist'  Kettel
                                     'tag_release'  Through Friendly Waters
                                       'tag_title'  Through Friendly Waters
                                             'bpm'  94.021
                                    'search_title'  'friendly':2 'through':1 'waters':3
                                   'search_artist'  'kettel':1
                                  'search_release'  'friendly':2 'through':1 'waters':3
                                     'search_rest'  '0calmer':1 '2005':6 'electronic':8 'elu':7 'friendly':4 'kettel':2 'through':3 'waters':5
                                    'search_combo'  '0calmer':8 '2005':13 'electronic':15 'elu':14 'friendly':2A,6C,11 'kettel':4B,9 'through':1A,5C,10 'waters':3A,7C,12
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-BUSY-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'experimental', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912175.6063752  (2021-11-14 18:49:35)
                             'size'  7652372